40137640

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{7219}}^1$

素因数の和:7369

約数の個数: 32

約数和(自身を含む): 90972000

約数和(自身を除く): 50834360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 7219, 14438, 28876, 36095, 57752, 72190, 144380, 288760, 1003441, 2006882, 4013764, 5017205, 8027528, 10034410, 20068820, 40137640]

約数ペア:

[(1, 40137640), (2, 20068820), (4, 10034410), (5, 8027528), (8, 5017205), (10, 4013764), (20, 2006882), (40, 1003441), (139, 288760), (278, 144380), (556, 72190), (695, 57752), (1112, 36095), (1390, 28876), (2780, 14438), (5560, 7219)]