42866540

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{20809}}^1$

素因数の和:20921

約数の個数: 24

約数和(自身を含む): 90898080

約数和(自身を除く): 48031540

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 20809, 41618, 83236, 104045, 208090, 416180, 2143327, 4286654, 8573308, 10716635, 21433270, 42866540]

約数ペア:

[(1, 42866540), (2, 21433270), (4, 10716635), (5, 8573308), (10, 4286654), (20, 2143327), (103, 416180), (206, 208090), (412, 104045), (515, 83236), (1030, 41618), (2060, 20809)]