2218889725

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{30893}}^1$

素因数の和:30946

約数の個数: 36

約数和(自身を含む): 3154709916

約数和(自身を除く): 935820191

約数列:

[1, 5, 13, 17, 25, 65, 85, 169, 221, 325, 425, 845, 1105, 2873, 4225, 5525, 14365, 30893, 71825, 154465, 401609, 525181, 772325, 2008045, 2625905, 5220917, 6827353, 10040225, 13129525, 26104585, 34136765, 88755589, 130522925, 170683825, 443777945, 2218889725]

約数ペア:

[(1, 2218889725), (5, 443777945), (13, 170683825), (17, 130522925), (25, 88755589), (65, 34136765), (85, 26104585), (169, 13129525), (221, 10040225), (325, 6827353), (425, 5220917), (845, 2625905), (1105, 2008045), (2873, 772325), (4225, 525181), (5525, 401609), (14365, 154465), (30893, 71825)]