28810860

素因数分解:

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

素因数の和:927

約数の個数: 96

約数和(自身を含む): 88999680

約数和(自身を除く): 60188820

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 43, 52, 60, 65, 78, 86, 129, 130, 156, 172, 195, 215, 258, 260, 390, 430, 516, 559, 645, 780, 859, 860, 1118, 1290, 1677, 1718, 2236, 2577, 2580, 2795, 3354, 3436, 4295, 5154, 5590, 6708, 8385, 8590, 10308, 11167, 11180, 12885, 16770, 17180, 22334, 25770, 33501, 33540, 36937, 44668, 51540, 55835, 67002, 73874, 110811, 111670, 134004, 147748, 167505, 184685, 221622, 223340, 335010, 369370, 443244, 480181, 554055, 670020, 738740, 960362, 1108110, 1440543, 1920724, 2216220, 2400905, 2881086, 4801810, 5762172, 7202715, 9603620, 14405430, 28810860]

約数ペア:

[(1, 28810860), (2, 14405430), (3, 9603620), (4, 7202715), (5, 5762172), (6, 4801810), (10, 2881086), (12, 2400905), (13, 2216220), (15, 1920724), (20, 1440543), (26, 1108110), (30, 960362), (39, 738740), (43, 670020), (52, 554055), (60, 480181), (65, 443244), (78, 369370), (86, 335010), (129, 223340), (130, 221622), (156, 184685), (172, 167505), (195, 147748), (215, 134004), (258, 111670), (260, 110811), (390, 73874), (430, 67002), (516, 55835), (559, 51540), (645, 44668), (780, 36937), (859, 33540), (860, 33501), (1118, 25770), (1290, 22334), (1677, 17180), (1718, 16770), (2236, 12885), (2577, 11180), (2580, 11167), (2795, 10308), (3354, 8590), (3436, 8385), (4295, 6708), (5154, 5590)]