81967700

素因数分解:

$2^2\times 5^2\times {\mathrm{281}}^1\times {\mathrm{2917}}^1$

素因数の和:3212

約数の個数: 36

約数和(自身を含む): 178564092

約数和(自身を除く): 96596392

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 281, 562, 1124, 1405, 2810, 2917, 5620, 5834, 7025, 11668, 14050, 14585, 28100, 29170, 58340, 72925, 145850, 291700, 819677, 1639354, 3278708, 4098385, 8196770, 16393540, 20491925, 40983850, 81967700]

約数ペア:

[(1, 81967700), (2, 40983850), (4, 20491925), (5, 16393540), (10, 8196770), (20, 4098385), (25, 3278708), (50, 1639354), (100, 819677), (281, 291700), (562, 145850), (1124, 72925), (1405, 58340), (2810, 29170), (2917, 28100), (5620, 14585), (5834, 14050), (7025, 11668)]