1218820

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{409}}^1$

素因数の和:567

約数の個数: 24

約数和(自身を含む): 2583000

約数和(自身を除く): 1364180

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 409, 596, 745, 818, 1490, 1636, 2045, 2980, 4090, 8180, 60941, 121882, 243764, 304705, 609410, 1218820]

約数ペア:

[(1, 1218820), (2, 609410), (4, 304705), (5, 243764), (10, 121882), (20, 60941), (149, 8180), (298, 4090), (409, 2980), (596, 2045), (745, 1636), (818, 1490)]