201578840

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1\times {\mathrm{719}}^1$

素因数の和:936

約数の個数: 64

約数和(自身を含む): 467596800

約数和(自身を除く): 266017960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 163, 172, 215, 326, 344, 430, 652, 719, 815, 860, 1304, 1438, 1630, 1720, 2876, 3260, 3595, 5752, 6520, 7009, 7190, 14018, 14380, 28036, 28760, 30917, 35045, 56072, 61834, 70090, 117197, 123668, 140180, 154585, 234394, 247336, 280360, 309170, 468788, 585985, 618340, 937576, 1171970, 1236680, 2343940, 4687880, 5039471, 10078942, 20157884, 25197355, 40315768, 50394710, 100789420, 201578840]

約数ペア:

[(1, 201578840), (2, 100789420), (4, 50394710), (5, 40315768), (8, 25197355), (10, 20157884), (20, 10078942), (40, 5039471), (43, 4687880), (86, 2343940), (163, 1236680), (172, 1171970), (215, 937576), (326, 618340), (344, 585985), (430, 468788), (652, 309170), (719, 280360), (815, 247336), (860, 234394), (1304, 154585), (1438, 140180), (1630, 123668), (1720, 117197), (2876, 70090), (3260, 61834), (3595, 56072), (5752, 35045), (6520, 30917), (7009, 28760), (7190, 28036), (14018, 14380)]