205731375

素因数分解:

$3^1\times 5^3\times {\mathrm{71}}^1\times {\mathrm{7727}}^1$

素因数の和:7816

約数の個数: 32

約数和(自身を含む): 347203584

約数和(自身を除く): 141472209

約数列:

[1, 3, 5, 15, 25, 71, 75, 125, 213, 355, 375, 1065, 1775, 5325, 7727, 8875, 23181, 26625, 38635, 115905, 193175, 548617, 579525, 965875, 1645851, 2743085, 2897625, 8229255, 13715425, 41146275, 68577125, 205731375]

約数ペア:

[(1, 205731375), (3, 68577125), (5, 41146275), (15, 13715425), (25, 8229255), (71, 2897625), (75, 2743085), (125, 1645851), (213, 965875), (355, 579525), (375, 548617), (1065, 193175), (1775, 115905), (5325, 38635), (7727, 26625), (8875, 23181)]