628403728

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{1266943}}^1$

素因数の和:1266982

約数の個数: 20

約数和(自身を含む): 1256808448

約数和(自身を除く): 628404720

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 1266943, 2533886, 5067772, 10135544, 20271088, 39275233, 78550466, 157100932, 314201864, 628403728]

約数ペア:

[(1, 628403728), (2, 314201864), (4, 157100932), (8, 78550466), (16, 39275233), (31, 20271088), (62, 10135544), (124, 5067772), (248, 2533886), (496, 1266943)]