688090520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{24967}}^1$

素因数の和:25044

約数の個数: 64

約数和(自身を含む): 1698822720

約数和(自身を除く): 1010732200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 53, 65, 104, 106, 130, 212, 260, 265, 424, 520, 530, 689, 1060, 1378, 2120, 2756, 3445, 5512, 6890, 13780, 24967, 27560, 49934, 99868, 124835, 199736, 249670, 324571, 499340, 649142, 998680, 1298284, 1323251, 1622855, 2596568, 2646502, 3245710, 5293004, 6491420, 6616255, 10586008, 12982840, 13232510, 17202263, 26465020, 34404526, 52930040, 68809052, 86011315, 137618104, 172022630, 344045260, 688090520]

約数ペア:

[(1, 688090520), (2, 344045260), (4, 172022630), (5, 137618104), (8, 86011315), (10, 68809052), (13, 52930040), (20, 34404526), (26, 26465020), (40, 17202263), (52, 13232510), (53, 12982840), (65, 10586008), (104, 6616255), (106, 6491420), (130, 5293004), (212, 3245710), (260, 2646502), (265, 2596568), (424, 1622855), (520, 1323251), (530, 1298284), (689, 998680), (1060, 649142), (1378, 499340), (2120, 324571), (2756, 249670), (3445, 199736), (5512, 124835), (6890, 99868), (13780, 49934), (24967, 27560)]