64656560

素因数分解:

$2^4\times 5^1\times {\mathrm{557}}^1\times {\mathrm{1451}}^1$

素因数の和:2021

約数の個数: 40

約数和(自身を含む): 150700176

約数和(自身を除く): 86043616

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 557, 1114, 1451, 2228, 2785, 2902, 4456, 5570, 5804, 7255, 8912, 11140, 11608, 14510, 22280, 23216, 29020, 44560, 58040, 116080, 808207, 1616414, 3232828, 4041035, 6465656, 8082070, 12931312, 16164140, 32328280, 64656560]

約数ペア:

[(1, 64656560), (2, 32328280), (4, 16164140), (5, 12931312), (8, 8082070), (10, 6465656), (16, 4041035), (20, 3232828), (40, 1616414), (80, 808207), (557, 116080), (1114, 58040), (1451, 44560), (2228, 29020), (2785, 23216), (2902, 22280), (4456, 14510), (5570, 11608), (5804, 11140), (7255, 8912)]