2080497560

素因数分解:

$2^3\times 5^1\times {\mathrm{1289}}^1\times {\mathrm{40351}}^1$

素因数の和:41651

約数の個数: 32

約数和(自身を含む): 4684867200

約数和(自身を除く): 2604369640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1289, 2578, 5156, 6445, 10312, 12890, 25780, 40351, 51560, 80702, 161404, 201755, 322808, 403510, 807020, 1614040, 52012439, 104024878, 208049756, 260062195, 416099512, 520124390, 1040248780, 2080497560]

約数ペア:

[(1, 2080497560), (2, 1040248780), (4, 520124390), (5, 416099512), (8, 260062195), (10, 208049756), (20, 104024878), (40, 52012439), (1289, 1614040), (2578, 807020), (5156, 403510), (6445, 322808), (10312, 201755), (12890, 161404), (25780, 80702), (40351, 51560)]