8712440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19801}}^1$

素因数の和:19823

約数の個数: 32

約数和(自身を含む): 21386160

約数和(自身を除く): 12673720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 19801, 39602, 79204, 99005, 158408, 198010, 217811, 396020, 435622, 792040, 871244, 1089055, 1742488, 2178110, 4356220, 8712440]

約数ペア:

[(1, 8712440), (2, 4356220), (4, 2178110), (5, 1742488), (8, 1089055), (10, 871244), (11, 792040), (20, 435622), (22, 396020), (40, 217811), (44, 198010), (55, 158408), (88, 99005), (110, 79204), (220, 39602), (440, 19801)]