80645968

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{387721}}^1$

素因数の和:387742

約数の個数: 20

約数和(自身を含む): 168271348

約数和(自身を除く): 87625380

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 387721, 775442, 1550884, 3101768, 5040373, 6203536, 10080746, 20161492, 40322984, 80645968]

約数ペア:

[(1, 80645968), (2, 40322984), (4, 20161492), (8, 10080746), (13, 6203536), (16, 5040373), (26, 3101768), (52, 1550884), (104, 775442), (208, 387721)]