128279960

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{2657}}^1$

素因数の和:2756

約数の個数: 64

約数和(自身を含む): 310029120

約数和(自身を除く): 181749160

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 71, 85, 136, 142, 170, 284, 340, 355, 568, 680, 710, 1207, 1420, 2414, 2657, 2840, 4828, 5314, 6035, 9656, 10628, 12070, 13285, 21256, 24140, 26570, 45169, 48280, 53140, 90338, 106280, 180676, 188647, 225845, 361352, 377294, 451690, 754588, 903380, 943235, 1509176, 1806760, 1886470, 3206999, 3772940, 6413998, 7545880, 12827996, 16034995, 25655992, 32069990, 64139980, 128279960]

約数ペア:

[(1, 128279960), (2, 64139980), (4, 32069990), (5, 25655992), (8, 16034995), (10, 12827996), (17, 7545880), (20, 6413998), (34, 3772940), (40, 3206999), (68, 1886470), (71, 1806760), (85, 1509176), (136, 943235), (142, 903380), (170, 754588), (284, 451690), (340, 377294), (355, 361352), (568, 225845), (680, 188647), (710, 180676), (1207, 106280), (1420, 90338), (2414, 53140), (2657, 48280), (2840, 45169), (4828, 26570), (5314, 24140), (6035, 21256), (9656, 13285), (10628, 12070)]