40780640

素因数分解:

$2^5\times 5^1\times {\mathrm{254879}}^1$

素因数の和:254894

約数の個数: 24

約数和(自身を含む): 96344640

約数和(自身を除く): 55564000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 254879, 509758, 1019516, 1274395, 2039032, 2548790, 4078064, 5097580, 8156128, 10195160, 20390320, 40780640]

約数ペア:

[(1, 40780640), (2, 20390320), (4, 10195160), (5, 8156128), (8, 5097580), (10, 4078064), (16, 2548790), (20, 2039032), (32, 1274395), (40, 1019516), (80, 509758), (160, 254879)]