8542420

素因数分解:

$2^2\times 5^1\times {\mathrm{431}}^1\times {\mathrm{991}}^1$

素因数の和:1431

約数の個数: 24

約数和(自身を含む): 17998848

約数和(自身を除く): 9456428

約数列:

[1, 2, 4, 5, 10, 20, 431, 862, 991, 1724, 1982, 2155, 3964, 4310, 4955, 8620, 9910, 19820, 427121, 854242, 1708484, 2135605, 4271210, 8542420]

約数ペア:

[(1, 8542420), (2, 4271210), (4, 2135605), (5, 1708484), (10, 854242), (20, 427121), (431, 19820), (862, 9910), (991, 8620), (1724, 4955), (1982, 4310), (2155, 3964)]