31287080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{337}}^1$

素因数の和:570

約数の個数: 64

約数和(自身を含む): 77388480

約数和(自身を除く): 46101400

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 211, 220, 337, 422, 440, 674, 844, 1055, 1348, 1685, 1688, 2110, 2321, 2696, 3370, 3707, 4220, 4642, 6740, 7414, 8440, 9284, 11605, 13480, 14828, 18535, 18568, 23210, 29656, 37070, 46420, 71107, 74140, 92840, 142214, 148280, 284428, 355535, 568856, 711070, 782177, 1422140, 1564354, 2844280, 3128708, 3910885, 6257416, 7821770, 15643540, 31287080]

約数ペア:

[(1, 31287080), (2, 15643540), (4, 7821770), (5, 6257416), (8, 3910885), (10, 3128708), (11, 2844280), (20, 1564354), (22, 1422140), (40, 782177), (44, 711070), (55, 568856), (88, 355535), (110, 284428), (211, 148280), (220, 142214), (337, 92840), (422, 74140), (440, 71107), (674, 46420), (844, 37070), (1055, 29656), (1348, 23210), (1685, 18568), (1688, 18535), (2110, 14828), (2321, 13480), (2696, 11605), (3370, 9284), (3707, 8440), (4220, 7414), (4642, 6740)]