71357240

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{15787}}^1$

素因数の和:15911

約数の個数: 32

約数和(自身を含む): 161984880

約数和(自身を除く): 90627640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 2260, 4520, 15787, 31574, 63148, 78935, 126296, 157870, 315740, 631480, 1783931, 3567862, 7135724, 8919655, 14271448, 17839310, 35678620, 71357240]

約数ペア:

[(1, 71357240), (2, 35678620), (4, 17839310), (5, 14271448), (8, 8919655), (10, 7135724), (20, 3567862), (40, 1783931), (113, 631480), (226, 315740), (452, 157870), (565, 126296), (904, 78935), (1130, 63148), (2260, 31574), (4520, 15787)]