31975920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{499}}^1$

素因数の和:607

約数の個数: 120

約数和(自身を含む): 108810000

約数和(自身を除く): 76834080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 89, 90, 120, 144, 178, 180, 240, 267, 356, 360, 445, 499, 534, 712, 720, 801, 890, 998, 1068, 1335, 1424, 1497, 1602, 1780, 1996, 2136, 2495, 2670, 2994, 3204, 3560, 3992, 4005, 4272, 4491, 4990, 5340, 5988, 6408, 7120, 7485, 7984, 8010, 8982, 9980, 10680, 11976, 12816, 14970, 16020, 17964, 19960, 21360, 22455, 23952, 29940, 32040, 35928, 39920, 44411, 44910, 59880, 64080, 71856, 88822, 89820, 119760, 133233, 177644, 179640, 222055, 266466, 355288, 359280, 399699, 444110, 532932, 666165, 710576, 799398, 888220, 1065864, 1332330, 1598796, 1776440, 1998495, 2131728, 2664660, 3197592, 3552880, 3996990, 5329320, 6395184, 7993980, 10658640, 15987960, 31975920]

約数ペア:

[(1, 31975920), (2, 15987960), (3, 10658640), (4, 7993980), (5, 6395184), (6, 5329320), (8, 3996990), (9, 3552880), (10, 3197592), (12, 2664660), (15, 2131728), (16, 1998495), (18, 1776440), (20, 1598796), (24, 1332330), (30, 1065864), (36, 888220), (40, 799398), (45, 710576), (48, 666165), (60, 532932), (72, 444110), (80, 399699), (89, 359280), (90, 355288), (120, 266466), (144, 222055), (178, 179640), (180, 177644), (240, 133233), (267, 119760), (356, 89820), (360, 88822), (445, 71856), (499, 64080), (534, 59880), (712, 44910), (720, 44411), (801, 39920), (890, 35928), (998, 32040), (1068, 29940), (1335, 23952), (1424, 22455), (1497, 21360), (1602, 19960), (1780, 17964), (1996, 16020), (2136, 14970), (2495, 12816), (2670, 11976), (2994, 10680), (3204, 9980), (3560, 8982), (3992, 8010), (4005, 7984), (4272, 7485), (4491, 7120), (4990, 6408), (5340, 5988)]