217390240

素因数分解:

$2^5\times 5^1\times {\mathrm{1358689}}^1$

素因数の和:1358704

約数の個数: 24

約数和(自身を含む): 513584820

約数和(自身を除く): 296194580

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 1358689, 2717378, 5434756, 6793445, 10869512, 13586890, 21739024, 27173780, 43478048, 54347560, 108695120, 217390240]

約数ペア:

[(1, 217390240), (2, 108695120), (4, 54347560), (5, 43478048), (8, 27173780), (10, 21739024), (16, 13586890), (20, 10869512), (32, 6793445), (40, 5434756), (80, 2717378), (160, 1358689)]