90986995

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{257}}^1$

素因数の和:471

約数の個数: 32

約数和(自身を含む): 123270336

約数和(自身を除く): 32283341

約数列:

[1, 5, 11, 41, 55, 157, 205, 257, 451, 785, 1285, 1727, 2255, 2827, 6437, 8635, 10537, 14135, 32185, 40349, 52685, 70807, 115907, 201745, 354035, 443839, 579535, 1654309, 2219195, 8271545, 18197399, 90986995]

約数ペア:

[(1, 90986995), (5, 18197399), (11, 8271545), (41, 2219195), (55, 1654309), (157, 579535), (205, 443839), (257, 354035), (451, 201745), (785, 115907), (1285, 70807), (1727, 52685), (2255, 40349), (2827, 32185), (6437, 14135), (8635, 10537)]