64475240

素因数分解:

$2^3\times 5^1\times {\mathrm{1611881}}^1$

素因数の和:1611892

約数の個数: 16

約数和(自身を含む): 145069380

約数和(自身を除く): 80594140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1611881, 3223762, 6447524, 8059405, 12895048, 16118810, 32237620, 64475240]

約数ペア:

[(1, 64475240), (2, 32237620), (4, 16118810), (5, 12895048), (8, 8059405), (10, 6447524), (20, 3223762), (40, 1611881)]