628418620

素因数分解:

$2^2\times 5^1\times {\mathrm{941}}^1\times {\mathrm{33391}}^1$

素因数の和:34341

約数の個数: 24

約数和(自身を含む): 1321121088

約数和(自身を除く): 692702468

約数列:

[1, 2, 4, 5, 10, 20, 941, 1882, 3764, 4705, 9410, 18820, 33391, 66782, 133564, 166955, 333910, 667820, 31420931, 62841862, 125683724, 157104655, 314209310, 628418620]

約数ペア:

[(1, 628418620), (2, 314209310), (4, 157104655), (5, 125683724), (10, 62841862), (20, 31420931), (941, 667820), (1882, 333910), (3764, 166955), (4705, 133564), (9410, 66782), (18820, 33391)]