828781640

素因数分解:

$2^3\times 5^1\times {\mathrm{20719541}}^1$

素因数の和:20719552

約数の個数: 16

約数和(自身を含む): 1864758780

約数和(自身を除く): 1035977140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 20719541, 41439082, 82878164, 103597705, 165756328, 207195410, 414390820, 828781640]

約数ペア:

[(1, 828781640), (2, 414390820), (4, 207195410), (5, 165756328), (8, 103597705), (10, 82878164), (20, 41439082), (40, 20719541)]