20104360

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{7079}}^1$

素因数の和:7161

約数の個数: 32

約数和(自身を含む): 45878400

約数和(自身を除く): 25774040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 7079, 14158, 28316, 35395, 56632, 70790, 141580, 283160, 502609, 1005218, 2010436, 2513045, 4020872, 5026090, 10052180, 20104360]

約数ペア:

[(1, 20104360), (2, 10052180), (4, 5026090), (5, 4020872), (8, 2513045), (10, 2010436), (20, 1005218), (40, 502609), (71, 283160), (142, 141580), (284, 70790), (355, 56632), (568, 35395), (710, 28316), (1420, 14158), (2840, 7079)]