71728700

素因数分解:

$2^2\times 5^2\times {\mathrm{257}}^1\times {\mathrm{2791}}^1$

素因数の和:3062

約数の個数: 36

約数和(自身を含む): 156312912

約数和(自身を除く): 84584212

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 257, 514, 1028, 1285, 2570, 2791, 5140, 5582, 6425, 11164, 12850, 13955, 25700, 27910, 55820, 69775, 139550, 279100, 717287, 1434574, 2869148, 3586435, 7172870, 14345740, 17932175, 35864350, 71728700]

約数ペア:

[(1, 71728700), (2, 35864350), (4, 17932175), (5, 14345740), (10, 7172870), (20, 3586435), (25, 2869148), (50, 1434574), (100, 717287), (257, 279100), (514, 139550), (1028, 69775), (1285, 55820), (2570, 27910), (2791, 25700), (5140, 13955), (5582, 12850), (6425, 11164)]