81636660

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{313}}^1$

素因数の和:364

約数の個数: 240

約数和(自身を含む): 306383616

約数和(自身を除く): 224746956

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 23, 27, 28, 30, 35, 36, 42, 45, 46, 54, 60, 63, 69, 70, 81, 84, 90, 92, 105, 108, 115, 126, 135, 138, 140, 161, 162, 180, 189, 207, 210, 230, 252, 270, 276, 313, 315, 322, 324, 345, 378, 405, 414, 420, 460, 483, 540, 567, 621, 626, 630, 644, 690, 756, 805, 810, 828, 939, 945, 966, 1035, 1134, 1242, 1252, 1260, 1380, 1449, 1565, 1610, 1620, 1863, 1878, 1890, 1932, 2070, 2191, 2268, 2415, 2484, 2817, 2835, 2898, 3105, 3130, 3220, 3726, 3756, 3780, 4140, 4347, 4382, 4695, 4830, 5634, 5670, 5796, 6210, 6260, 6573, 7199, 7245, 7452, 8451, 8694, 8764, 9315, 9390, 9660, 10955, 11268, 11340, 12420, 13041, 13146, 14085, 14398, 14490, 16902, 17388, 18630, 18780, 19719, 21597, 21735, 21910, 25353, 26082, 26292, 28170, 28796, 28980, 32865, 33804, 35995, 37260, 39438, 42255, 43194, 43470, 43820, 50393, 50706, 52164, 56340, 59157, 64791, 65205, 65730, 71990, 78876, 84510, 86388, 86940, 98595, 100786, 101412, 107985, 118314, 126765, 129582, 130410, 131460, 143980, 151179, 169020, 177471, 194373, 197190, 201572, 215970, 236628, 251965, 253530, 259164, 260820, 295785, 302358, 323955, 354942, 388746, 394380, 431940, 453537, 503930, 507060, 583119, 591570, 604716, 647910, 709884, 755895, 777492, 887355, 907074, 971865, 1007860, 1166238, 1183140, 1295820, 1360611, 1511790, 1774710, 1814148, 1943730, 2267685, 2332476, 2721222, 2915595, 3023580, 3549420, 3887460, 4081833, 4535370, 5442444, 5831190, 6803055, 8163666, 9070740, 11662380, 13606110, 16327332, 20409165, 27212220, 40818330, 81636660]

約数ペア:

[(1, 81636660), (2, 40818330), (3, 27212220), (4, 20409165), (5, 16327332), (6, 13606110), (7, 11662380), (9, 9070740), (10, 8163666), (12, 6803055), (14, 5831190), (15, 5442444), (18, 4535370), (20, 4081833), (21, 3887460), (23, 3549420), (27, 3023580), (28, 2915595), (30, 2721222), (35, 2332476), (36, 2267685), (42, 1943730), (45, 1814148), (46, 1774710), (54, 1511790), (60, 1360611), (63, 1295820), (69, 1183140), (70, 1166238), (81, 1007860), (84, 971865), (90, 907074), (92, 887355), (105, 777492), (108, 755895), (115, 709884), (126, 647910), (135, 604716), (138, 591570), (140, 583119), (161, 507060), (162, 503930), (180, 453537), (189, 431940), (207, 394380), (210, 388746), (230, 354942), (252, 323955), (270, 302358), (276, 295785), (313, 260820), (315, 259164), (322, 253530), (324, 251965), (345, 236628), (378, 215970), (405, 201572), (414, 197190), (420, 194373), (460, 177471), (483, 169020), (540, 151179), (567, 143980), (621, 131460), (626, 130410), (630, 129582), (644, 126765), (690, 118314), (756, 107985), (805, 101412), (810, 100786), (828, 98595), (939, 86940), (945, 86388), (966, 84510), (1035, 78876), (1134, 71990), (1242, 65730), (1252, 65205), (1260, 64791), (1380, 59157), (1449, 56340), (1565, 52164), (1610, 50706), (1620, 50393), (1863, 43820), (1878, 43470), (1890, 43194), (1932, 42255), (2070, 39438), (2191, 37260), (2268, 35995), (2415, 33804), (2484, 32865), (2817, 28980), (2835, 28796), (2898, 28170), (3105, 26292), (3130, 26082), (3220, 25353), (3726, 21910), (3756, 21735), (3780, 21597), (4140, 19719), (4347, 18780), (4382, 18630), (4695, 17388), (4830, 16902), (5634, 14490), (5670, 14398), (5796, 14085), (6210, 13146), (6260, 13041), (6573, 12420), (7199, 11340), (7245, 11268), (7452, 10955), (8451, 9660), (8694, 9390), (8764, 9315)]