201220825

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{15101}}^1$

素因数の和:15165

約数の個数: 24

約数和(自身を含む): 275279256

約数和(自身を除く): 74058431

約数列:

[1, 5, 13, 25, 41, 65, 205, 325, 533, 1025, 2665, 13325, 15101, 75505, 196313, 377525, 619141, 981565, 3095705, 4907825, 8048833, 15478525, 40244165, 201220825]

約数ペア:

[(1, 201220825), (5, 40244165), (13, 15478525), (25, 8048833), (41, 4907825), (65, 3095705), (205, 981565), (325, 619141), (533, 377525), (1025, 196313), (2665, 75505), (13325, 15101)]