279147920

素因数分解:

$2^4\times 5^1\times {\mathrm{3489349}}^1$

素因数の和:3489362

約数の個数: 20

約数和(自身を含む): 649019100

約数和(自身を除く): 369871180

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3489349, 6978698, 13957396, 17446745, 27914792, 34893490, 55829584, 69786980, 139573960, 279147920]

約数ペア:

[(1, 279147920), (2, 139573960), (4, 69786980), (5, 55829584), (8, 34893490), (10, 27914792), (16, 17446745), (20, 13957396), (40, 6978698), (80, 3489349)]