321525520

素因数分解:

$2^4\times 5^1\times {\mathrm{4019069}}^1$

素因数の和:4019082

約数の個数: 20

約数和(自身を含む): 747547020

約数和(自身を除く): 426021500

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4019069, 8038138, 16076276, 20095345, 32152552, 40190690, 64305104, 80381380, 160762760, 321525520]

約数ペア:

[(1, 321525520), (2, 160762760), (4, 80381380), (5, 64305104), (8, 40190690), (10, 32152552), (16, 20095345), (20, 16076276), (40, 8038138), (80, 4019069)]