18309980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{70423}}^1$

素因数の和:70445

約数の個数: 24

約数和(自身を含む): 41409312

約数和(自身を除く): 23099332

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 70423, 140846, 281692, 352115, 704230, 915499, 1408460, 1830998, 3661996, 4577495, 9154990, 18309980]

約数ペア:

[(1, 18309980), (2, 9154990), (4, 4577495), (5, 3661996), (10, 1830998), (13, 1408460), (20, 915499), (26, 704230), (52, 352115), (65, 281692), (130, 140846), (260, 70423)]