90120560

素因数分解:

$2^4\times 5^1\times {\mathrm{701}}^1\times {\mathrm{1607}}^1$

素因数の和:2321

約数の個数: 40

約数和(自身を含む): 209959776

約数和(自身を除く): 119839216

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 701, 1402, 1607, 2804, 3214, 3505, 5608, 6428, 7010, 8035, 11216, 12856, 14020, 16070, 25712, 28040, 32140, 56080, 64280, 128560, 1126507, 2253014, 4506028, 5632535, 9012056, 11265070, 18024112, 22530140, 45060280, 90120560]

約数ペア:

[(1, 90120560), (2, 45060280), (4, 22530140), (5, 18024112), (8, 11265070), (10, 9012056), (16, 5632535), (20, 4506028), (40, 2253014), (80, 1126507), (701, 128560), (1402, 64280), (1607, 56080), (2804, 32140), (3214, 28040), (3505, 25712), (5608, 16070), (6428, 14020), (7010, 12856), (8035, 11216)]