78438928

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{158143}}^1$

素因数の和:158182

約数の個数: 20

約数和(自身を含む): 156878848

約数和(自身を除く): 78439920

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 158143, 316286, 632572, 1265144, 2530288, 4902433, 9804866, 19609732, 39219464, 78438928]

約数ペア:

[(1, 78438928), (2, 39219464), (4, 19609732), (8, 9804866), (16, 4902433), (31, 2530288), (62, 1265144), (124, 632572), (248, 316286), (496, 158143)]