632807680

素因数分解:

$2^8\times 5^1\times {\mathrm{494381}}^1$

素因数の和:494402

約数の個数: 36

約数和(自身を含む): 1515775212

約数和(自身を除く): 882967532

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 494381, 988762, 1977524, 2471905, 3955048, 4943810, 7910096, 9887620, 15820192, 19775240, 31640384, 39550480, 63280768, 79100960, 126561536, 158201920, 316403840, 632807680]

約数ペア:

[(1, 632807680), (2, 316403840), (4, 158201920), (5, 126561536), (8, 79100960), (10, 63280768), (16, 39550480), (20, 31640384), (32, 19775240), (40, 15820192), (64, 9887620), (80, 7910096), (128, 4943810), (160, 3955048), (256, 2471905), (320, 1977524), (640, 988762), (1280, 494381)]