1904819920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1253171}}^1$

素因数の和:1253203

約数の個数: 40

約数和(自身を含む): 4661799840

約数和(自身を除く): 2756979920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 1253171, 2506342, 5012684, 6265855, 10025368, 12531710, 20050736, 23810249, 25063420, 47620498, 50126840, 95240996, 100253680, 119051245, 190481992, 238102490, 380963984, 476204980, 952409960, 1904819920]

約数ペア:

[(1, 1904819920), (2, 952409960), (4, 476204980), (5, 380963984), (8, 238102490), (10, 190481992), (16, 119051245), (19, 100253680), (20, 95240996), (38, 50126840), (40, 47620498), (76, 25063420), (80, 23810249), (95, 20050736), (152, 12531710), (190, 10025368), (304, 6265855), (380, 5012684), (760, 2506342), (1520, 1253171)]