20277180

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1$

素因数の和:70

約数の個数: 324

約数和(自身を含む): 82784520

約数和(自身を除く): 62507340

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 14, 15, 18, 19, 20, 21, 22, 28, 30, 33, 35, 36, 38, 42, 44, 45, 49, 55, 57, 60, 63, 66, 70, 76, 77, 84, 90, 95, 98, 99, 105, 110, 114, 121, 126, 132, 133, 140, 147, 154, 165, 171, 180, 190, 196, 198, 209, 210, 220, 228, 231, 242, 245, 252, 266, 285, 294, 308, 315, 330, 342, 363, 380, 385, 396, 399, 418, 420, 441, 462, 484, 490, 495, 532, 539, 570, 588, 605, 627, 630, 660, 665, 684, 693, 726, 735, 770, 798, 836, 847, 855, 882, 924, 931, 980, 990, 1045, 1078, 1089, 1140, 1155, 1197, 1210, 1254, 1260, 1330, 1386, 1452, 1463, 1470, 1540, 1596, 1617, 1694, 1710, 1764, 1815, 1862, 1881, 1980, 1995, 2090, 2156, 2178, 2205, 2299, 2310, 2394, 2420, 2508, 2541, 2660, 2695, 2772, 2793, 2926, 2940, 3135, 3234, 3388, 3420, 3465, 3630, 3724, 3762, 3990, 4180, 4235, 4356, 4389, 4410, 4598, 4620, 4655, 4788, 4851, 5082, 5390, 5445, 5586, 5852, 5929, 5985, 6270, 6468, 6897, 6930, 7260, 7315, 7524, 7623, 7980, 8085, 8379, 8470, 8778, 8820, 9196, 9310, 9405, 9702, 10164, 10241, 10780, 10890, 11172, 11495, 11858, 11970, 12540, 12705, 13167, 13794, 13860, 13965, 14630, 15246, 16093, 16170, 16758, 16940, 17556, 17787, 18620, 18810, 19404, 20482, 20691, 21780, 21945, 22990, 23716, 23940, 24255, 25410, 26334, 27588, 27930, 29260, 29645, 30492, 30723, 32186, 32340, 33516, 34485, 35574, 37620, 38115, 40964, 41382, 41895, 43890, 45980, 48279, 48510, 50820, 51205, 52668, 53361, 55860, 59290, 61446, 64372, 65835, 68970, 71148, 76230, 80465, 82764, 83790, 87780, 88935, 92169, 96558, 97020, 102410, 103455, 106722, 112651, 118580, 122892, 131670, 137940, 144837, 152460, 153615, 160930, 167580, 177870, 184338, 193116, 204820, 206910, 213444, 225302, 241395, 263340, 266805, 289674, 307230, 321860, 337953, 355740, 368676, 413820, 450604, 460845, 482790, 533610, 563255, 579348, 614460, 675906, 724185, 921690, 965580, 1013859, 1067220, 1126510, 1351812, 1448370, 1689765, 1843380, 2027718, 2253020, 2896740, 3379530, 4055436, 5069295, 6759060, 10138590, 20277180]

約数ペア:

[(1, 20277180), (2, 10138590), (3, 6759060), (4, 5069295), (5, 4055436), (6, 3379530), (7, 2896740), (9, 2253020), (10, 2027718), (11, 1843380), (12, 1689765), (14, 1448370), (15, 1351812), (18, 1126510), (19, 1067220), (20, 1013859), (21, 965580), (22, 921690), (28, 724185), (30, 675906), (33, 614460), (35, 579348), (36, 563255), (38, 533610), (42, 482790), (44, 460845), (45, 450604), (49, 413820), (55, 368676), (57, 355740), (60, 337953), (63, 321860), (66, 307230), (70, 289674), (76, 266805), (77, 263340), (84, 241395), (90, 225302), (95, 213444), (98, 206910), (99, 204820), (105, 193116), (110, 184338), (114, 177870), (121, 167580), (126, 160930), (132, 153615), (133, 152460), (140, 144837), (147, 137940), (154, 131670), (165, 122892), (171, 118580), (180, 112651), (190, 106722), (196, 103455), (198, 102410), (209, 97020), (210, 96558), (220, 92169), (228, 88935), (231, 87780), (242, 83790), (245, 82764), (252, 80465), (266, 76230), (285, 71148), (294, 68970), (308, 65835), (315, 64372), (330, 61446), (342, 59290), (363, 55860), (380, 53361), (385, 52668), (396, 51205), (399, 50820), (418, 48510), (420, 48279), (441, 45980), (462, 43890), (484, 41895), (490, 41382), (495, 40964), (532, 38115), (539, 37620), (570, 35574), (588, 34485), (605, 33516), (627, 32340), (630, 32186), (660, 30723), (665, 30492), (684, 29645), (693, 29260), (726, 27930), (735, 27588), (770, 26334), (798, 25410), (836, 24255), (847, 23940), (855, 23716), (882, 22990), (924, 21945), (931, 21780), (980, 20691), (990, 20482), (1045, 19404), (1078, 18810), (1089, 18620), (1140, 17787), (1155, 17556), (1197, 16940), (1210, 16758), (1254, 16170), (1260, 16093), (1330, 15246), (1386, 14630), (1452, 13965), (1463, 13860), (1470, 13794), (1540, 13167), (1596, 12705), (1617, 12540), (1694, 11970), (1710, 11858), (1764, 11495), (1815, 11172), (1862, 10890), (1881, 10780), (1980, 10241), (1995, 10164), (2090, 9702), (2156, 9405), (2178, 9310), (2205, 9196), (2299, 8820), (2310, 8778), (2394, 8470), (2420, 8379), (2508, 8085), (2541, 7980), (2660, 7623), (2695, 7524), (2772, 7315), (2793, 7260), (2926, 6930), (2940, 6897), (3135, 6468), (3234, 6270), (3388, 5985), (3420, 5929), (3465, 5852), (3630, 5586), (3724, 5445), (3762, 5390), (3990, 5082), (4180, 4851), (4235, 4788), (4356, 4655), (4389, 4620), (4410, 4598)]