40538320

素因数分解:

$2^4\times 5^1\times {\mathrm{506729}}^1$

素因数の和:506742

約数の個数: 20

約数和(自身を含む): 94251780

約数和(自身を除く): 53713460

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 506729, 1013458, 2026916, 2533645, 4053832, 5067290, 8107664, 10134580, 20269160, 40538320]

約数ペア:

[(1, 40538320), (2, 20269160), (4, 10134580), (5, 8107664), (8, 5067290), (10, 4053832), (16, 2533645), (20, 2026916), (40, 1013458), (80, 506729)]