81499972

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{571}}^1\times {\mathrm{2099}}^1$

素因数の和:2691

約数の個数: 24

約数和(自身を含む): 151351200

約数和(自身を除く): 69851228

約数列:

[1, 2, 4, 17, 34, 68, 571, 1142, 2099, 2284, 4198, 8396, 9707, 19414, 35683, 38828, 71366, 142732, 1198529, 2397058, 4794116, 20374993, 40749986, 81499972]

約数ペア:

[(1, 81499972), (2, 40749986), (4, 20374993), (17, 4794116), (34, 2397058), (68, 1198529), (571, 142732), (1142, 71366), (2099, 38828), (2284, 35683), (4198, 19414), (8396, 9707)]