661264

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{1117}}^1$

素因数の和:1162

約数の個数: 20

約数和(自身を含む): 1317004

約数和(自身を除く): 655740

約数列:

[1, 2, 4, 8, 16, 37, 74, 148, 296, 592, 1117, 2234, 4468, 8936, 17872, 41329, 82658, 165316, 330632, 661264]

約数ペア:

[(1, 661264), (2, 330632), (4, 165316), (8, 82658), (16, 41329), (37, 17872), (74, 8936), (148, 4468), (296, 2234), (592, 1117)]