128897408

素因数分解:

$2^7\times {\mathrm{641}}^1\times {\mathrm{1571}}^1$

素因数の和:2226

約数の個数: 32

約数和(自身を含む): 257352120

約数和(自身を除く): 128454712

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 641, 1282, 1571, 2564, 3142, 5128, 6284, 10256, 12568, 20512, 25136, 41024, 50272, 82048, 100544, 201088, 1007011, 2014022, 4028044, 8056088, 16112176, 32224352, 64448704, 128897408]

約数ペア:

[(1, 128897408), (2, 64448704), (4, 32224352), (8, 16112176), (16, 8056088), (32, 4028044), (64, 2014022), (128, 1007011), (641, 201088), (1282, 100544), (1571, 82048), (2564, 50272), (3142, 41024), (5128, 25136), (6284, 20512), (10256, 12568)]