720827575

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{401}}^1\times {\mathrm{5531}}^1$

素因数の和:5955

約数の個数: 24

約数和(自身を含む): 965156976

約数和(自身を除く): 244329401

約数列:

[1, 5, 13, 25, 65, 325, 401, 2005, 5213, 5531, 10025, 26065, 27655, 71903, 130325, 138275, 359515, 1797575, 2217931, 11089655, 28833103, 55448275, 144165515, 720827575]

約数ペア:

[(1, 720827575), (5, 144165515), (13, 55448275), (25, 28833103), (65, 11089655), (325, 2217931), (401, 1797575), (2005, 359515), (5213, 138275), (5531, 130325), (10025, 71903), (26065, 27655)]