8111420

素因数分解:

$2^2\times 5^1\times {\mathrm{431}}^1\times {\mathrm{941}}^1$

素因数の和:1381

約数の個数: 24

約数和(自身を含む): 17091648

約数和(自身を除く): 8980228

約数列:

[1, 2, 4, 5, 10, 20, 431, 862, 941, 1724, 1882, 2155, 3764, 4310, 4705, 8620, 9410, 18820, 405571, 811142, 1622284, 2027855, 4055710, 8111420]

約数ペア:

[(1, 8111420), (2, 4055710), (4, 2027855), (5, 1622284), (10, 811142), (20, 405571), (431, 18820), (862, 9410), (941, 8620), (1724, 4705), (1882, 4310), (2155, 3764)]