40438960

素因数分解:

$2^4\times 5^1\times {\mathrm{499}}^1\times {\mathrm{1013}}^1$

素因数の和:1525

約数の個数: 40

約数和(自身を含む): 94302000

約数和(自身を除く): 53863040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 499, 998, 1013, 1996, 2026, 2495, 3992, 4052, 4990, 5065, 7984, 8104, 9980, 10130, 16208, 19960, 20260, 39920, 40520, 81040, 505487, 1010974, 2021948, 2527435, 4043896, 5054870, 8087792, 10109740, 20219480, 40438960]

約数ペア:

[(1, 40438960), (2, 20219480), (4, 10109740), (5, 8087792), (8, 5054870), (10, 4043896), (16, 2527435), (20, 2021948), (40, 1010974), (80, 505487), (499, 81040), (998, 40520), (1013, 39920), (1996, 20260), (2026, 19960), (2495, 16208), (3992, 10130), (4052, 9980), (4990, 8104), (5065, 7984)]