28307920

素因数分解:

$2^4\times 5^1\times {\mathrm{107}}^1\times {\mathrm{3307}}^1$

素因数の和:3427

約数の個数: 40

約数和(自身を含む): 66451104

約数和(自身を除く): 38143184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 107, 214, 428, 535, 856, 1070, 1712, 2140, 3307, 4280, 6614, 8560, 13228, 16535, 26456, 33070, 52912, 66140, 132280, 264560, 353849, 707698, 1415396, 1769245, 2830792, 3538490, 5661584, 7076980, 14153960, 28307920]

約数ペア:

[(1, 28307920), (2, 14153960), (4, 7076980), (5, 5661584), (8, 3538490), (10, 2830792), (16, 1769245), (20, 1415396), (40, 707698), (80, 353849), (107, 264560), (214, 132280), (428, 66140), (535, 52912), (856, 33070), (1070, 26456), (1712, 16535), (2140, 13228), (3307, 8560), (4280, 6614)]