520056875

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{64007}}^1$

素因数の和:64040

約数の個数: 20

約数和(自身を含む): 699863472

約数和(自身を除く): 179806597

約数列:

[1, 5, 13, 25, 65, 125, 325, 625, 1625, 8125, 64007, 320035, 832091, 1600175, 4160455, 8000875, 20802275, 40004375, 104011375, 520056875]

約数ペア:

[(1, 520056875), (5, 104011375), (13, 40004375), (25, 20802275), (65, 8000875), (125, 4160455), (325, 1600175), (625, 832091), (1625, 320035), (8125, 64007)]