154855640

素因数分解:

$2^3\times 5^1\times {\mathrm{3871391}}^1$

素因数の和:3871402

約数の個数: 16

約数和(自身を含む): 348425280

約数和(自身を除く): 193569640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3871391, 7742782, 15485564, 19356955, 30971128, 38713910, 77427820, 154855640]

約数ペア:

[(1, 154855640), (2, 77427820), (4, 38713910), (5, 30971128), (8, 19356955), (10, 15485564), (20, 7742782), (40, 3871391)]