204021845

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{1321}}^1$

素因数の和:1445

約数の個数: 32

約数和(自身を含む): 274129920

約数和(自身を除く): 70108075

約数列:

[1, 5, 17, 23, 79, 85, 115, 391, 395, 1321, 1343, 1817, 1955, 6605, 6715, 9085, 22457, 30383, 30889, 104359, 112285, 151915, 154445, 516511, 521795, 1774103, 2400257, 2582555, 8870515, 12001285, 40804369, 204021845]

約数ペア:

[(1, 204021845), (5, 40804369), (17, 12001285), (23, 8870515), (79, 2582555), (85, 2400257), (115, 1774103), (391, 521795), (395, 516511), (1321, 154445), (1343, 151915), (1817, 112285), (1955, 104359), (6605, 30889), (6715, 30383), (9085, 22457)]