126272620

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{153991}}^1$

素因数の和:154041

約数の個数: 24

約数和(自身を含む): 271641888

約数和(自身を除く): 145369268

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 153991, 307982, 615964, 769955, 1539910, 3079820, 6313631, 12627262, 25254524, 31568155, 63136310, 126272620]

約数ペア:

[(1, 126272620), (2, 63136310), (4, 31568155), (5, 25254524), (10, 12627262), (20, 6313631), (41, 3079820), (82, 1539910), (164, 769955), (205, 615964), (410, 307982), (820, 153991)]