131397385

素因数分解:

$5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{137}}^1\times {\mathrm{409}}^1$

素因数の和:625

約数の個数: 32

約数和(自身を含む): 184677120

約数和(自身を除く): 53279735

約数列:

[1, 5, 7, 35, 67, 137, 335, 409, 469, 685, 959, 2045, 2345, 2863, 4795, 9179, 14315, 27403, 45895, 56033, 64253, 137015, 191821, 280165, 321265, 392231, 959105, 1961155, 3754211, 18771055, 26279477, 131397385]

約数ペア:

[(1, 131397385), (5, 26279477), (7, 18771055), (35, 3754211), (67, 1961155), (137, 959105), (335, 392231), (409, 321265), (469, 280165), (685, 191821), (959, 137015), (2045, 64253), (2345, 56033), (2863, 45895), (4795, 27403), (9179, 14315)]