26819920

素因数分解:

$2^4\times 5^1\times {\mathrm{335249}}^1$

素因数の和:335262

約数の個数: 20

約数和(自身を含む): 62356500

約数和(自身を除く): 35536580

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 335249, 670498, 1340996, 1676245, 2681992, 3352490, 5363984, 6704980, 13409960, 26819920]

約数ペア:

[(1, 26819920), (2, 13409960), (4, 6704980), (5, 5363984), (8, 3352490), (10, 2681992), (16, 1676245), (20, 1340996), (40, 670498), (80, 335249)]