1578280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{211}}^1$

素因数の和:250

約数の個数: 64

約数和(自身を含む): 4121280

約数和(自身を除く): 2543000

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 44, 55, 68, 85, 88, 110, 136, 170, 187, 211, 220, 340, 374, 422, 440, 680, 748, 844, 935, 1055, 1496, 1688, 1870, 2110, 2321, 3587, 3740, 4220, 4642, 7174, 7480, 8440, 9284, 11605, 14348, 17935, 18568, 23210, 28696, 35870, 39457, 46420, 71740, 78914, 92840, 143480, 157828, 197285, 315656, 394570, 789140, 1578280]

約数ペア:

[(1, 1578280), (2, 789140), (4, 394570), (5, 315656), (8, 197285), (10, 157828), (11, 143480), (17, 92840), (20, 78914), (22, 71740), (34, 46420), (40, 39457), (44, 35870), (55, 28696), (68, 23210), (85, 18568), (88, 17935), (110, 14348), (136, 11605), (170, 9284), (187, 8440), (211, 7480), (220, 7174), (340, 4642), (374, 4220), (422, 3740), (440, 3587), (680, 2321), (748, 2110), (844, 1870), (935, 1688), (1055, 1496)]