20512800940

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{107}}^1\times {\mathrm{2179}}^1$

素因数の和:2431

約数の個数: 96

約数和(自身を含む): 44854145280

約数和(自身を除く): 24341344340

約数列:

[1, 2, 4, 5, 10, 20, 53, 83, 106, 107, 166, 212, 214, 265, 332, 415, 428, 530, 535, 830, 1060, 1070, 1660, 2140, 2179, 4358, 4399, 5671, 8716, 8798, 8881, 10895, 11342, 17596, 17762, 21790, 21995, 22684, 28355, 35524, 43580, 43990, 44405, 56710, 87980, 88810, 113420, 115487, 177620, 180857, 230974, 233153, 361714, 461948, 466306, 470693, 577435, 723428, 904285, 932612, 941386, 1154870, 1165765, 1808570, 1882772, 2309740, 2331530, 2353465, 3617140, 4663060, 4706930, 9413860, 9585421, 12357109, 19170842, 19351699, 24714218, 38341684, 38703398, 47927105, 49428436, 61785545, 77406796, 95854210, 96758495, 123571090, 191708420, 193516990, 247142180, 387033980, 1025640047, 2051280094, 4102560188, 5128200235, 10256400470, 20512800940]

約数ペア:

[(1, 20512800940), (2, 10256400470), (4, 5128200235), (5, 4102560188), (10, 2051280094), (20, 1025640047), (53, 387033980), (83, 247142180), (106, 193516990), (107, 191708420), (166, 123571090), (212, 96758495), (214, 95854210), (265, 77406796), (332, 61785545), (415, 49428436), (428, 47927105), (530, 38703398), (535, 38341684), (830, 24714218), (1060, 19351699), (1070, 19170842), (1660, 12357109), (2140, 9585421), (2179, 9413860), (4358, 4706930), (4399, 4663060), (5671, 3617140), (8716, 2353465), (8798, 2331530), (8881, 2309740), (10895, 1882772), (11342, 1808570), (17596, 1165765), (17762, 1154870), (21790, 941386), (21995, 932612), (22684, 904285), (28355, 723428), (35524, 577435), (43580, 470693), (43990, 466306), (44405, 461948), (56710, 361714), (87980, 233153), (88810, 230974), (113420, 180857), (115487, 177620)]