31390710

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{80489}}^1$

素因数の和:80512

約数の個数: 32

約数和(自身を含む): 81133920

約数和(自身を除く): 49743210

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 80489, 160978, 241467, 402445, 482934, 804890, 1046357, 1207335, 2092714, 2414670, 3139071, 5231785, 6278142, 10463570, 15695355, 31390710]

約数ペア:

[(1, 31390710), (2, 15695355), (3, 10463570), (5, 6278142), (6, 5231785), (10, 3139071), (13, 2414670), (15, 2092714), (26, 1207335), (30, 1046357), (39, 804890), (65, 482934), (78, 402445), (130, 241467), (195, 160978), (390, 80489)]