40163960

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{3907}}^1$

素因数の和:4175

約数の個数: 32

約数和(自身を含む): 90743760

約数和(自身を除く): 50579800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 3907, 5140, 7814, 10280, 15628, 19535, 31256, 39070, 78140, 156280, 1004099, 2008198, 4016396, 5020495, 8032792, 10040990, 20081980, 40163960]

約数ペア:

[(1, 40163960), (2, 20081980), (4, 10040990), (5, 8032792), (8, 5020495), (10, 4016396), (20, 2008198), (40, 1004099), (257, 156280), (514, 78140), (1028, 39070), (1285, 31256), (2056, 19535), (2570, 15628), (3907, 10280), (5140, 7814)]