311917580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1199683}}^1$

素因数の和:1199705

約数の個数: 24

約数和(自身を含む): 705414192

約数和(自身を除く): 393496612

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1199683, 2399366, 4798732, 5998415, 11996830, 15595879, 23993660, 31191758, 62383516, 77979395, 155958790, 311917580]

約数ペア:

[(1, 311917580), (2, 155958790), (4, 77979395), (5, 62383516), (10, 31191758), (13, 23993660), (20, 15595879), (26, 11996830), (52, 5998415), (65, 4798732), (130, 2399366), (260, 1199683)]