81323600

素因数分解:

$2^4\times 5^2\times {\mathrm{203309}}^1$

素因数の和:203327

約数の個数: 30

約数和(自身を含む): 195380910

約数和(自身を除く): 114057310

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 203309, 406618, 813236, 1016545, 1626472, 2033090, 3252944, 4066180, 5082725, 8132360, 10165450, 16264720, 20330900, 40661800, 81323600]

約数ペア:

[(1, 81323600), (2, 40661800), (4, 20330900), (5, 16264720), (8, 10165450), (10, 8132360), (16, 5082725), (20, 4066180), (25, 3252944), (40, 2033090), (50, 1626472), (80, 1016545), (100, 813236), (200, 406618), (400, 203309)]