20560670

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{1451}}^1$

素因数の和:1580

約数の個数: 32

約数和(自身を含む): 40249440

約数和(自身を除く): 19688770

約数列:

[1, 2, 5, 10, 13, 26, 65, 109, 130, 218, 545, 1090, 1417, 1451, 2834, 2902, 7085, 7255, 14170, 14510, 18863, 37726, 94315, 158159, 188630, 316318, 790795, 1581590, 2056067, 4112134, 10280335, 20560670]

約数ペア:

[(1, 20560670), (2, 10280335), (5, 4112134), (10, 2056067), (13, 1581590), (26, 790795), (65, 316318), (109, 188630), (130, 158159), (218, 94315), (545, 37726), (1090, 18863), (1417, 14510), (1451, 14170), (2834, 7255), (2902, 7085)]