28305359840

素因数分解:

$2^5\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2491669}}^1$

素因数の和:2491755

約数の個数: 48

約数和(自身を含む): 67813290720

約数和(自身を除く): 39507930880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 71, 80, 142, 160, 284, 355, 568, 710, 1136, 1420, 2272, 2840, 5680, 11360, 2491669, 4983338, 9966676, 12458345, 19933352, 24916690, 39866704, 49833380, 79733408, 99666760, 176908499, 199333520, 353816998, 398667040, 707633996, 884542495, 1415267992, 1769084990, 2830535984, 3538169980, 5661071968, 7076339960, 14152679920, 28305359840]

約数ペア:

[(1, 28305359840), (2, 14152679920), (4, 7076339960), (5, 5661071968), (8, 3538169980), (10, 2830535984), (16, 1769084990), (20, 1415267992), (32, 884542495), (40, 707633996), (71, 398667040), (80, 353816998), (142, 199333520), (160, 176908499), (284, 99666760), (355, 79733408), (568, 49833380), (710, 39866704), (1136, 24916690), (1420, 19933352), (2272, 12458345), (2840, 9966676), (5680, 4983338), (11360, 2491669)]