8420290

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{9461}}^1$

素因数の和:9557

約数の個数: 16

約数和(自身を含む): 15328440

約数和(自身を除く): 6908150

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 9461, 18922, 47305, 94610, 842029, 1684058, 4210145, 8420290]

約数ペア:

[(1, 8420290), (2, 4210145), (5, 1684058), (10, 842029), (89, 94610), (178, 47305), (445, 18922), (890, 9461)]