204378640

素因数分解:

$2^4\times 5^1\times {\mathrm{2554733}}^1$

素因数の和:2554746

約数の個数: 20

約数和(自身を含む): 475180524

約数和(自身を除く): 270801884

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2554733, 5109466, 10218932, 12773665, 20437864, 25547330, 40875728, 51094660, 102189320, 204378640]

約数ペア:

[(1, 204378640), (2, 102189320), (4, 51094660), (5, 40875728), (8, 25547330), (10, 20437864), (16, 12773665), (20, 10218932), (40, 5109466), (80, 2554733)]