80990478

素因数分解:

$2^1\times 3^2\times {\mathrm{223}}^1\times {\mathrm{20177}}^1$

素因数の和:20408

約数の個数: 24

約数和(自身を含む): 176275008

約数和(自身を除く): 95284530

約数列:

[1, 2, 3, 6, 9, 18, 223, 446, 669, 1338, 2007, 4014, 20177, 40354, 60531, 121062, 181593, 363186, 4499471, 8998942, 13498413, 26996826, 40495239, 80990478]

約数ペア:

[(1, 80990478), (2, 40495239), (3, 26996826), (6, 13498413), (9, 8998942), (18, 4499471), (223, 363186), (446, 181593), (669, 121062), (1338, 60531), (2007, 40354), (4014, 20177)]