20161774390

素因数分解:

$2^1\times 5^1\times {\mathrm{11987}}^1\times {\mathrm{168197}}^1$

素因数の和:180191

約数の個数: 16

約数和(自身を含む): 36294437232

約数和(自身を除く): 16132662842

約数列:

[1, 2, 5, 10, 11987, 23974, 59935, 119870, 168197, 336394, 840985, 1681970, 2016177439, 4032354878, 10080887195, 20161774390]

約数ペア:

[(1, 20161774390), (2, 10080887195), (5, 4032354878), (10, 2016177439), (11987, 1681970), (23974, 840985), (59935, 336394), (119870, 168197)]