90616060

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{197}}^1\times {\mathrm{211}}^1$

素因数の和:526

約数の個数: 48

約数和(自身を含む): 193929120

約数和(自身を除く): 103313060

約数列:

[1, 2, 4, 5, 10, 20, 109, 197, 211, 218, 394, 422, 436, 545, 788, 844, 985, 1055, 1090, 1970, 2110, 2180, 3940, 4220, 21473, 22999, 41567, 42946, 45998, 83134, 85892, 91996, 107365, 114995, 166268, 207835, 214730, 229990, 415670, 429460, 459980, 831340, 4530803, 9061606, 18123212, 22654015, 45308030, 90616060]

約数ペア:

[(1, 90616060), (2, 45308030), (4, 22654015), (5, 18123212), (10, 9061606), (20, 4530803), (109, 831340), (197, 459980), (211, 429460), (218, 415670), (394, 229990), (422, 214730), (436, 207835), (545, 166268), (788, 114995), (844, 107365), (985, 91996), (1055, 85892), (1090, 83134), (1970, 45998), (2110, 42946), (2180, 41567), (3940, 22999), (4220, 21473)]