28639390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{12959}}^1$

素因数の和:12996

約数の個数: 32

約数和(自身を含む): 58786560

約数和(自身を除く): 30147170

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 442, 1105, 2210, 12959, 25918, 64795, 129590, 168467, 220303, 336934, 440606, 842335, 1101515, 1684670, 2203030, 2863939, 5727878, 14319695, 28639390]

約数ペア:

[(1, 28639390), (2, 14319695), (5, 5727878), (10, 2863939), (13, 2203030), (17, 1684670), (26, 1101515), (34, 842335), (65, 440606), (85, 336934), (130, 220303), (170, 168467), (221, 129590), (442, 64795), (1105, 25918), (2210, 12959)]