12620500

素因数分解:

$2^2\times 5^3\times {\mathrm{43}}^1\times {\mathrm{587}}^1$

素因数の和:649

約数の個数: 48

約数和(自身を含む): 28252224

約数和(自身を除く): 15631724

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 125, 172, 215, 250, 430, 500, 587, 860, 1075, 1174, 2150, 2348, 2935, 4300, 5375, 5870, 10750, 11740, 14675, 21500, 25241, 29350, 50482, 58700, 73375, 100964, 126205, 146750, 252410, 293500, 504820, 631025, 1262050, 2524100, 3155125, 6310250, 12620500]

約数ペア:

[(1, 12620500), (2, 6310250), (4, 3155125), (5, 2524100), (10, 1262050), (20, 631025), (25, 504820), (43, 293500), (50, 252410), (86, 146750), (100, 126205), (125, 100964), (172, 73375), (215, 58700), (250, 50482), (430, 29350), (500, 25241), (587, 21500), (860, 14675), (1075, 11740), (1174, 10750), (2150, 5870), (2348, 5375), (2935, 4300)]