15638020

素因数分解:

$2^2\times 5^1\times {\mathrm{601}}^1\times {\mathrm{1301}}^1$

素因数の和:1911

約数の個数: 24

約数和(自身を含む): 32919768

約数和(自身を除く): 17281748

約数列:

[1, 2, 4, 5, 10, 20, 601, 1202, 1301, 2404, 2602, 3005, 5204, 6010, 6505, 12020, 13010, 26020, 781901, 1563802, 3127604, 3909505, 7819010, 15638020]

約数ペア:

[(1, 15638020), (2, 7819010), (4, 3909505), (5, 3127604), (10, 1563802), (20, 781901), (601, 26020), (1202, 13010), (1301, 12020), (2404, 6505), (2602, 6010), (3005, 5204)]