89712100

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{21881}}^1$

素因数の和:21936

約数の個数: 36

約数和(自身を含む): 199432548

約数和(自身を除く): 109720448

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 164, 205, 410, 820, 1025, 2050, 4100, 21881, 43762, 87524, 109405, 218810, 437620, 547025, 897121, 1094050, 1794242, 2188100, 3588484, 4485605, 8971210, 17942420, 22428025, 44856050, 89712100]

約数ペア:

[(1, 89712100), (2, 44856050), (4, 22428025), (5, 17942420), (10, 8971210), (20, 4485605), (25, 3588484), (41, 2188100), (50, 1794242), (82, 1094050), (100, 897121), (164, 547025), (205, 437620), (410, 218810), (820, 109405), (1025, 87524), (2050, 43762), (4100, 21881)]