90088040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{321743}}^1$

素因数の和:321761

約数の個数: 32

約数和(自身を含む): 231655680

約数和(自身を除く): 141567640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 321743, 643486, 1286972, 1608715, 2252201, 2573944, 3217430, 4504402, 6434860, 9008804, 11261005, 12869720, 18017608, 22522010, 45044020, 90088040]

約数ペア:

[(1, 90088040), (2, 45044020), (4, 22522010), (5, 18017608), (7, 12869720), (8, 11261005), (10, 9008804), (14, 6434860), (20, 4504402), (28, 3217430), (35, 2573944), (40, 2252201), (56, 1608715), (70, 1286972), (140, 643486), (280, 321743)]