20863190

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{499}}^1$

素因数の和:656

約数の個数: 32

約数和(自身を含む): 38988000

約数和(自身を除く): 18124810

約数列:

[1, 2, 5, 10, 37, 74, 113, 185, 226, 370, 499, 565, 998, 1130, 2495, 4181, 4990, 8362, 18463, 20905, 36926, 41810, 56387, 92315, 112774, 184630, 281935, 563870, 2086319, 4172638, 10431595, 20863190]

約数ペア:

[(1, 20863190), (2, 10431595), (5, 4172638), (10, 2086319), (37, 563870), (74, 281935), (113, 184630), (185, 112774), (226, 92315), (370, 56387), (499, 41810), (565, 36926), (998, 20905), (1130, 18463), (2495, 8362), (4181, 4990)]