215825020

素因数分解:

$2^2\times 5^1\times {\mathrm{809}}^1\times {\mathrm{13339}}^1$

素因数の和:14157

約数の個数: 24

約数和(自身を含む): 453826800

約数和(自身を除く): 238001780

約数列:

[1, 2, 4, 5, 10, 20, 809, 1618, 3236, 4045, 8090, 13339, 16180, 26678, 53356, 66695, 133390, 266780, 10791251, 21582502, 43165004, 53956255, 107912510, 215825020]

約数ペア:

[(1, 215825020), (2, 107912510), (4, 53956255), (5, 43165004), (10, 21582502), (20, 10791251), (809, 266780), (1618, 133390), (3236, 66695), (4045, 53356), (8090, 26678), (13339, 16180)]