17990450

素因数分解:

$2^1\times 5^2\times {\mathrm{109}}^1\times {\mathrm{3301}}^1$

素因数の和:3422

約数の個数: 24

約数和(自身を含む): 33779460

約数和(自身を除く): 15789010

約数列:

[1, 2, 5, 10, 25, 50, 109, 218, 545, 1090, 2725, 3301, 5450, 6602, 16505, 33010, 82525, 165050, 359809, 719618, 1799045, 3598090, 8995225, 17990450]

約数ペア:

[(1, 17990450), (2, 8995225), (5, 3598090), (10, 1799045), (25, 719618), (50, 359809), (109, 165050), (218, 82525), (545, 33010), (1090, 16505), (2725, 6602), (3301, 5450)]