81938530

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^2\times {\mathrm{2917}}^1$

素因数の和:3030

約数の個数: 24

約数和(自身を含む): 150376212

約数和(自身を除く): 68437682

約数列:

[1, 2, 5, 10, 53, 106, 265, 530, 2809, 2917, 5618, 5834, 14045, 14585, 28090, 29170, 154601, 309202, 773005, 1546010, 8193853, 16387706, 40969265, 81938530]

約数ペア:

[(1, 81938530), (2, 40969265), (5, 16387706), (10, 8193853), (53, 1546010), (106, 773005), (265, 309202), (530, 154601), (2809, 29170), (2917, 28090), (5618, 14585), (5834, 14045)]