40378864

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{81409}}^1$

素因数の和:81448

約数の個数: 20

約数和(自身を含む): 80758720

約数和(自身を除く): 40379856

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 81409, 162818, 325636, 651272, 1302544, 2523679, 5047358, 10094716, 20189432, 40378864]

約数ペア:

[(1, 40378864), (2, 20189432), (4, 10094716), (8, 5047358), (16, 2523679), (31, 1302544), (62, 651272), (124, 325636), (248, 162818), (496, 81409)]