18649060

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{10477}}^1$

素因数の和:10575

約数の個数: 24

約数和(自身を含む): 39606840

約数和(自身を除く): 20957780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 10477, 20954, 41908, 52385, 104770, 209540, 932453, 1864906, 3729812, 4662265, 9324530, 18649060]

約数ペア:

[(1, 18649060), (2, 9324530), (4, 4662265), (5, 3729812), (10, 1864906), (20, 932453), (89, 209540), (178, 104770), (356, 52385), (445, 41908), (890, 20954), (1780, 10477)]