64633480

素因数分解:

$2^3\times 5^1\times {\mathrm{1615837}}^1$

素因数の和:1615848

約数の個数: 16

約数和(自身を含む): 145425420

約数和(自身を除く): 80791940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1615837, 3231674, 6463348, 8079185, 12926696, 16158370, 32316740, 64633480]

約数ペア:

[(1, 64633480), (2, 32316740), (4, 16158370), (5, 12926696), (8, 8079185), (10, 6463348), (20, 3231674), (40, 1615837)]