128758528

素因数分解:

$2^8\times {\mathrm{113}}^1\times {\mathrm{4451}}^1$

素因数の和:4580

約数の個数: 36

約数和(自身を含む): 259346808

約数和(自身を除く): 130588280

約数列:

[1, 2, 4, 8, 16, 32, 64, 113, 128, 226, 256, 452, 904, 1808, 3616, 4451, 7232, 8902, 14464, 17804, 28928, 35608, 71216, 142432, 284864, 502963, 569728, 1005926, 1139456, 2011852, 4023704, 8047408, 16094816, 32189632, 64379264, 128758528]

約数ペア:

[(1, 128758528), (2, 64379264), (4, 32189632), (8, 16094816), (16, 8047408), (32, 4023704), (64, 2011852), (113, 1139456), (128, 1005926), (226, 569728), (256, 502963), (452, 284864), (904, 142432), (1808, 71216), (3616, 35608), (4451, 28928), (7232, 17804), (8902, 14464)]