661072

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{523}}^1$

素因数の和:610

約数の個数: 20

約数和(自身を含む): 1299520

約数和(自身を除く): 638448

約数列:

[1, 2, 4, 8, 16, 79, 158, 316, 523, 632, 1046, 1264, 2092, 4184, 8368, 41317, 82634, 165268, 330536, 661072]

約数ペア:

[(1, 661072), (2, 330536), (4, 165268), (8, 82634), (16, 41317), (79, 8368), (158, 4184), (316, 2092), (523, 1264), (632, 1046)]