1380275

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1$

素因数の和:191

約数の個数: 24

約数和(自身を含む): 1916544

約数和(自身を除く): 536269

約数列:

[1, 5, 13, 25, 31, 65, 137, 155, 325, 403, 685, 775, 1781, 2015, 3425, 4247, 8905, 10075, 21235, 44525, 55211, 106175, 276055, 1380275]

約数ペア:

[(1, 1380275), (5, 276055), (13, 106175), (25, 55211), (31, 44525), (65, 21235), (137, 10075), (155, 8905), (325, 4247), (403, 3425), (685, 2015), (775, 1781)]