257606416

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{263941}}^1$

素因数の和:264010

約数の個数: 20

約数和(自身を含む): 507296524

約数和(自身を除く): 249690108

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 263941, 527882, 1055764, 2111528, 4223056, 16100401, 32200802, 64401604, 128803208, 257606416]

約数ペア:

[(1, 257606416), (2, 128803208), (4, 64401604), (8, 32200802), (16, 16100401), (61, 4223056), (122, 2111528), (244, 1055764), (488, 527882), (976, 263941)]