79640180

素因数分解:

$2^2\times 5^1\times {\mathrm{431}}^1\times {\mathrm{9239}}^1$

素因数の和:9679

約数の個数: 24

約数和(自身を含む): 167650560

約数和(自身を除く): 88010380

約数列:

[1, 2, 4, 5, 10, 20, 431, 862, 1724, 2155, 4310, 8620, 9239, 18478, 36956, 46195, 92390, 184780, 3982009, 7964018, 15928036, 19910045, 39820090, 79640180]

約数ペア:

[(1, 79640180), (2, 39820090), (4, 19910045), (5, 15928036), (10, 7964018), (20, 3982009), (431, 184780), (862, 92390), (1724, 46195), (2155, 36956), (4310, 18478), (8620, 9239)]