20423910

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{52369}}^1$

素因数の和:52392

約数の個数: 32

約数和(自身を含む): 52788960

約数和(自身を除く): 32365050

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 52369, 104738, 157107, 261845, 314214, 523690, 680797, 785535, 1361594, 1571070, 2042391, 3403985, 4084782, 6807970, 10211955, 20423910]

約数ペア:

[(1, 20423910), (2, 10211955), (3, 6807970), (5, 4084782), (6, 3403985), (10, 2042391), (13, 1571070), (15, 1361594), (26, 785535), (30, 680797), (39, 523690), (65, 314214), (78, 261845), (130, 157107), (195, 104738), (390, 52369)]