1331525

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{241}}^1$

素因数の和:281

約数の個数: 24

約数和(自身を含む): 1890504

約数和(自身を除く): 558979

約数列:

[1, 5, 13, 17, 25, 65, 85, 221, 241, 325, 425, 1105, 1205, 3133, 4097, 5525, 6025, 15665, 20485, 53261, 78325, 102425, 266305, 1331525]

約数ペア:

[(1, 1331525), (5, 266305), (13, 102425), (17, 78325), (25, 53261), (65, 20485), (85, 15665), (221, 6025), (241, 5525), (325, 4097), (425, 3133), (1105, 1205)]