28105870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{1451}}^1$

素因数の和:1620

約数の個数: 32

約数和(自身を含む): 54885600

約数和(自身を除く): 26779730

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 149, 298, 745, 1451, 1490, 1937, 2902, 3874, 7255, 9685, 14510, 18863, 19370, 37726, 94315, 188630, 216199, 432398, 1080995, 2161990, 2810587, 5621174, 14052935, 28105870]

約数ペア:

[(1, 28105870), (2, 14052935), (5, 5621174), (10, 2810587), (13, 2161990), (26, 1080995), (65, 432398), (130, 216199), (149, 188630), (298, 94315), (745, 37726), (1451, 19370), (1490, 18863), (1937, 14510), (2902, 9685), (3874, 7255)]