201990575

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{263}}^1\times {\mathrm{991}}^1$

素因数の和:1295

約数の個数: 24

約数和(自身を含む): 259792896

約数和(自身を除く): 57802321

約数列:

[1, 5, 25, 31, 155, 263, 775, 991, 1315, 4955, 6575, 8153, 24775, 30721, 40765, 153605, 203825, 260633, 768025, 1303165, 6515825, 8079623, 40398115, 201990575]

約数ペア:

[(1, 201990575), (5, 40398115), (25, 8079623), (31, 6515825), (155, 1303165), (263, 768025), (775, 260633), (991, 203825), (1315, 153605), (4955, 40765), (6575, 30721), (8153, 24775)]