19680638042

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{227}}^1\times {\mathrm{81331}}^1$

素因数の和:81614

約数の個数: 32

約数和(自身を含む): 32711079744

約数和(自身を除く): 13030441702

約数列:

[1, 2, 13, 26, 41, 82, 227, 454, 533, 1066, 2951, 5902, 9307, 18614, 81331, 120991, 162662, 241982, 1057303, 2114606, 3334571, 6669142, 18462137, 36924274, 43349423, 86698846, 240007781, 480015562, 756947617, 1513895234, 9840319021, 19680638042]

約数ペア:

[(1, 19680638042), (2, 9840319021), (13, 1513895234), (26, 756947617), (41, 480015562), (82, 240007781), (227, 86698846), (454, 43349423), (533, 36924274), (1066, 18462137), (2951, 6669142), (5902, 3334571), (9307, 2114606), (18614, 1057303), (81331, 241982), (120991, 162662)]