20400315

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{233}}^1\times {\mathrm{449}}^1$

素因数の和:703

約数の個数: 32

約数和(自身を含む): 35380800

約数和(自身を除く): 14980485

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 233, 449, 699, 1165, 1347, 2245, 3029, 3495, 5837, 6735, 9087, 15145, 17511, 29185, 45435, 87555, 104617, 313851, 523085, 1360021, 1569255, 4080063, 6800105, 20400315]

約数ペア:

[(1, 20400315), (3, 6800105), (5, 4080063), (13, 1569255), (15, 1360021), (39, 523085), (65, 313851), (195, 104617), (233, 87555), (449, 45435), (699, 29185), (1165, 17511), (1347, 15145), (2245, 9087), (3029, 6735), (3495, 5837)]