201521680

素因数分解:

$2^4\times 5^1\times {\mathrm{2519021}}^1$

素因数の和:2519034

約数の個数: 20

約数和(自身を含む): 468538092

約数和(自身を除く): 267016412

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2519021, 5038042, 10076084, 12595105, 20152168, 25190210, 40304336, 50380420, 100760840, 201521680]

約数ペア:

[(1, 201521680), (2, 100760840), (4, 50380420), (5, 40304336), (8, 25190210), (10, 20152168), (16, 12595105), (20, 10076084), (40, 5038042), (80, 2519021)]