261221872

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{526657}}^1$

素因数の和:526696

約数の個数: 20

約数和(自身を含む): 522444736

約数和(自身を除く): 261222864

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 526657, 1053314, 2106628, 4213256, 8426512, 16326367, 32652734, 65305468, 130610936, 261221872]

約数ペア:

[(1, 261221872), (2, 130610936), (4, 65305468), (8, 32652734), (16, 16326367), (31, 8426512), (62, 4213256), (124, 2106628), (248, 1053314), (496, 526657)]