20172958840

素因数分解:

$2^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{1021}}^1\times {\mathrm{2341}}^1$

素因数の和:3584

約数の個数: 64

約数和(自身を含む): 45668437920

約数和(自身を除く): 25495479080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 211, 422, 844, 1021, 1055, 1688, 2042, 2110, 2341, 4084, 4220, 4682, 5105, 8168, 8440, 9364, 10210, 11705, 18728, 20420, 23410, 40840, 46820, 93640, 215431, 430862, 493951, 861724, 987902, 1077155, 1723448, 1975804, 2154310, 2390161, 2469755, 3951608, 4308620, 4780322, 4939510, 8617240, 9560644, 9879020, 11950805, 19121288, 19758040, 23901610, 47803220, 95606440, 504323971, 1008647942, 2017295884, 2521619855, 4034591768, 5043239710, 10086479420, 20172958840]

約数ペア:

[(1, 20172958840), (2, 10086479420), (4, 5043239710), (5, 4034591768), (8, 2521619855), (10, 2017295884), (20, 1008647942), (40, 504323971), (211, 95606440), (422, 47803220), (844, 23901610), (1021, 19758040), (1055, 19121288), (1688, 11950805), (2042, 9879020), (2110, 9560644), (2341, 8617240), (4084, 4939510), (4220, 4780322), (4682, 4308620), (5105, 3951608), (8168, 2469755), (8440, 2390161), (9364, 2154310), (10210, 1975804), (11705, 1723448), (18728, 1077155), (20420, 987902), (23410, 861724), (40840, 493951), (46820, 430862), (93640, 215431)]