20449211580

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{571}}^1\times {\mathrm{661}}^1$

素因数の和:1297

約数の個数: 288

約数和(自身を含む): 72776191488

約数和(自身を除く): 52326979908

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 43, 45, 60, 63, 70, 84, 86, 90, 105, 126, 129, 140, 172, 180, 210, 215, 252, 258, 301, 315, 387, 420, 430, 516, 571, 602, 630, 645, 661, 774, 860, 903, 1142, 1204, 1260, 1290, 1322, 1505, 1548, 1713, 1806, 1935, 1983, 2284, 2580, 2644, 2709, 2855, 3010, 3305, 3426, 3612, 3870, 3966, 3997, 4515, 4627, 5139, 5418, 5710, 5949, 6020, 6610, 6852, 7740, 7932, 7994, 8565, 9030, 9254, 9915, 10278, 10836, 11420, 11898, 11991, 13220, 13545, 13881, 15988, 17130, 18060, 18508, 19830, 19985, 20556, 23135, 23796, 23982, 24553, 25695, 27090, 27762, 28423, 29745, 34260, 35973, 39660, 39970, 41643, 46270, 47964, 49106, 51390, 54180, 55524, 56846, 59490, 59955, 69405, 71946, 73659, 79940, 83286, 85269, 92540, 98212, 102780, 113692, 118980, 119910, 122765, 138810, 142115, 143892, 147318, 166572, 170538, 171871, 179865, 198961, 208215, 220977, 239820, 245530, 255807, 277620, 284230, 294636, 341076, 343742, 359730, 368295, 377431, 397922, 416430, 426345, 441954, 491060, 511614, 515613, 568460, 596883, 687484, 719460, 736590, 754862, 795844, 832860, 852690, 859355, 883908, 994805, 1023228, 1031226, 1104885, 1132293, 1193766, 1279035, 1473180, 1509724, 1546839, 1705380, 1718710, 1790649, 1887155, 1989610, 2062452, 2209770, 2264586, 2387532, 2558070, 2578065, 2642017, 2984415, 3093678, 3396879, 3437420, 3581298, 3774310, 3979220, 4419540, 4529172, 5116140, 5156130, 5284034, 5661465, 5968830, 6187356, 6793758, 7162596, 7548620, 7734195, 7926051, 8953245, 10312260, 10568068, 11322930, 11937660, 13210085, 13587516, 15468390, 15852102, 16229533, 16984395, 17906490, 22645860, 23778153, 26420170, 30936780, 31704204, 32459066, 33968790, 35812980, 39630255, 47556306, 48688599, 52840340, 64918132, 67937580, 79260510, 81147665, 95112612, 97377198, 113606731, 118890765, 146065797, 158521020, 162295330, 194754396, 227213462, 237781530, 243442995, 292131594, 324590660, 340820193, 454426924, 475563060, 486885990, 568033655, 584263188, 681640386, 730328985, 973771980, 1022460579, 1136067310, 1363280772, 1460657970, 1704100965, 2044921158, 2272134620, 2921315940, 3408201930, 4089842316, 5112302895, 6816403860, 10224605790, 20449211580]

約数ペア:

[(1, 20449211580), (2, 10224605790), (3, 6816403860), (4, 5112302895), (5, 4089842316), (6, 3408201930), (7, 2921315940), (9, 2272134620), (10, 2044921158), (12, 1704100965), (14, 1460657970), (15, 1363280772), (18, 1136067310), (20, 1022460579), (21, 973771980), (28, 730328985), (30, 681640386), (35, 584263188), (36, 568033655), (42, 486885990), (43, 475563060), (45, 454426924), (60, 340820193), (63, 324590660), (70, 292131594), (84, 243442995), (86, 237781530), (90, 227213462), (105, 194754396), (126, 162295330), (129, 158521020), (140, 146065797), (172, 118890765), (180, 113606731), (210, 97377198), (215, 95112612), (252, 81147665), (258, 79260510), (301, 67937580), (315, 64918132), (387, 52840340), (420, 48688599), (430, 47556306), (516, 39630255), (571, 35812980), (602, 33968790), (630, 32459066), (645, 31704204), (661, 30936780), (774, 26420170), (860, 23778153), (903, 22645860), (1142, 17906490), (1204, 16984395), (1260, 16229533), (1290, 15852102), (1322, 15468390), (1505, 13587516), (1548, 13210085), (1713, 11937660), (1806, 11322930), (1935, 10568068), (1983, 10312260), (2284, 8953245), (2580, 7926051), (2644, 7734195), (2709, 7548620), (2855, 7162596), (3010, 6793758), (3305, 6187356), (3426, 5968830), (3612, 5661465), (3870, 5284034), (3966, 5156130), (3997, 5116140), (4515, 4529172), (4627, 4419540), (5139, 3979220), (5418, 3774310), (5710, 3581298), (5949, 3437420), (6020, 3396879), (6610, 3093678), (6852, 2984415), (7740, 2642017), (7932, 2578065), (7994, 2558070), (8565, 2387532), (9030, 2264586), (9254, 2209770), (9915, 2062452), (10278, 1989610), (10836, 1887155), (11420, 1790649), (11898, 1718710), (11991, 1705380), (13220, 1546839), (13545, 1509724), (13881, 1473180), (15988, 1279035), (17130, 1193766), (18060, 1132293), (18508, 1104885), (19830, 1031226), (19985, 1023228), (20556, 994805), (23135, 883908), (23796, 859355), (23982, 852690), (24553, 832860), (25695, 795844), (27090, 754862), (27762, 736590), (28423, 719460), (29745, 687484), (34260, 596883), (35973, 568460), (39660, 515613), (39970, 511614), (41643, 491060), (46270, 441954), (47964, 426345), (49106, 416430), (51390, 397922), (54180, 377431), (55524, 368295), (56846, 359730), (59490, 343742), (59955, 341076), (69405, 294636), (71946, 284230), (73659, 277620), (79940, 255807), (83286, 245530), (85269, 239820), (92540, 220977), (98212, 208215), (102780, 198961), (113692, 179865), (118980, 171871), (119910, 170538), (122765, 166572), (138810, 147318), (142115, 143892)]