121765640

素因数分解:

$2^3\times 5^1\times {\mathrm{563}}^1\times {\mathrm{5407}}^1$

素因数の和:5981

約数の個数: 32

約数和(自身を含む): 274510080

約数和(自身を除く): 152744440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 563, 1126, 2252, 2815, 4504, 5407, 5630, 10814, 11260, 21628, 22520, 27035, 43256, 54070, 108140, 216280, 3044141, 6088282, 12176564, 15220705, 24353128, 30441410, 60882820, 121765640]

約数ペア:

[(1, 121765640), (2, 60882820), (4, 30441410), (5, 24353128), (8, 15220705), (10, 12176564), (20, 6088282), (40, 3044141), (563, 216280), (1126, 108140), (2252, 54070), (2815, 43256), (4504, 27035), (5407, 22520), (5630, 21628), (10814, 11260)]