129021815

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1\times {\mathrm{269}}^1$

素因数の和:491

約数の個数: 32

約数和(自身を含む): 172005120

約数和(自身を除く): 42983305

約数列:

[1, 5, 13, 47, 65, 157, 235, 269, 611, 785, 1345, 2041, 3055, 3497, 7379, 10205, 12643, 17485, 36895, 42233, 63215, 95927, 164359, 211165, 479635, 549029, 821795, 1984951, 2745145, 9924755, 25804363, 129021815]

約数ペア:

[(1, 129021815), (5, 25804363), (13, 9924755), (47, 2745145), (65, 1984951), (157, 821795), (235, 549029), (269, 479635), (611, 211165), (785, 164359), (1345, 95927), (2041, 63215), (3055, 42233), (3497, 36895), (7379, 17485), (10205, 12643)]