1642220

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{523}}^1$

素因数の和:689

約数の個数: 24

約数和(自身を含む): 3477264

約数和(自身を除く): 1835044

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 523, 628, 785, 1046, 1570, 2092, 2615, 3140, 5230, 10460, 82111, 164222, 328444, 410555, 821110, 1642220]

約数ペア:

[(1, 1642220), (2, 821110), (4, 410555), (5, 328444), (10, 164222), (20, 82111), (157, 10460), (314, 5230), (523, 3140), (628, 2615), (785, 2092), (1046, 1570)]