139057775

素因数分解:

$5^2\times {\mathrm{79}}^1\times {\mathrm{181}}^1\times {\mathrm{389}}^1$

素因数の和:659

約数の個数: 24

約数和(自身を含む): 176030400

約数和(自身を除く): 36972625

約数列:

[1, 5, 25, 79, 181, 389, 395, 905, 1945, 1975, 4525, 9725, 14299, 30731, 70409, 71495, 153655, 352045, 357475, 768275, 1760225, 5562311, 27811555, 139057775]

約数ペア:

[(1, 139057775), (5, 27811555), (25, 5562311), (79, 1760225), (181, 768275), (389, 357475), (395, 352045), (905, 153655), (1945, 71495), (1975, 70409), (4525, 30731), (9725, 14299)]