19207240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{859}}^1$

素因数の和:926

約数の個数: 64

約数和(自身を含む): 47678400

約数和(自身を除く): 28471160

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 43, 52, 65, 86, 104, 130, 172, 215, 260, 344, 430, 520, 559, 859, 860, 1118, 1718, 1720, 2236, 2795, 3436, 4295, 4472, 5590, 6872, 8590, 11167, 11180, 17180, 22334, 22360, 34360, 36937, 44668, 55835, 73874, 89336, 111670, 147748, 184685, 223340, 295496, 369370, 446680, 480181, 738740, 960362, 1477480, 1920724, 2400905, 3841448, 4801810, 9603620, 19207240]

約数ペア:

[(1, 19207240), (2, 9603620), (4, 4801810), (5, 3841448), (8, 2400905), (10, 1920724), (13, 1477480), (20, 960362), (26, 738740), (40, 480181), (43, 446680), (52, 369370), (65, 295496), (86, 223340), (104, 184685), (130, 147748), (172, 111670), (215, 89336), (260, 73874), (344, 55835), (430, 44668), (520, 36937), (559, 34360), (859, 22360), (860, 22334), (1118, 17180), (1718, 11180), (1720, 11167), (2236, 8590), (2795, 6872), (3436, 5590), (4295, 4472)]