2154760

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{523}}^1$

素因数の和:637

約数の個数: 32

約数和(自身を含む): 4904640

約数和(自身を除く): 2749880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 523, 824, 1030, 1046, 2060, 2092, 2615, 4120, 4184, 5230, 10460, 20920, 53869, 107738, 215476, 269345, 430952, 538690, 1077380, 2154760]

約数ペア:

[(1, 2154760), (2, 1077380), (4, 538690), (5, 430952), (8, 269345), (10, 215476), (20, 107738), (40, 53869), (103, 20920), (206, 10460), (412, 5230), (515, 4184), (523, 4120), (824, 2615), (1030, 2092), (1046, 2060)]