1625621720

素因数分解:

$2^3\times 5^1\times {\mathrm{40640543}}^1$

素因数の和:40640554

約数の個数: 16

約数和(自身を含む): 3657648960

約数和(自身を除く): 2032027240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 40640543, 81281086, 162562172, 203202715, 325124344, 406405430, 812810860, 1625621720]

約数ペア:

[(1, 1625621720), (2, 812810860), (4, 406405430), (5, 325124344), (8, 203202715), (10, 162562172), (20, 81281086), (40, 40640543)]