20173857800

素因数分解:

$2^3\times 5^2\times {\mathrm{37}}^2\times {\mathrm{73681}}^1$

素因数の和:73771

約数の個数: 72

約数和(自身を含む): 48206816910

約数和(自身を除く): 28032959110

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 37, 40, 50, 74, 100, 148, 185, 200, 296, 370, 740, 925, 1369, 1480, 1850, 2738, 3700, 5476, 6845, 7400, 10952, 13690, 27380, 34225, 54760, 68450, 73681, 136900, 147362, 273800, 294724, 368405, 589448, 736810, 1473620, 1842025, 2726197, 2947240, 3684050, 5452394, 7368100, 10904788, 13630985, 14736200, 21809576, 27261970, 54523940, 68154925, 100869289, 109047880, 136309850, 201738578, 272619700, 403477156, 504346445, 545239400, 806954312, 1008692890, 2017385780, 2521732225, 4034771560, 5043464450, 10086928900, 20173857800]

約数ペア:

[(1, 20173857800), (2, 10086928900), (4, 5043464450), (5, 4034771560), (8, 2521732225), (10, 2017385780), (20, 1008692890), (25, 806954312), (37, 545239400), (40, 504346445), (50, 403477156), (74, 272619700), (100, 201738578), (148, 136309850), (185, 109047880), (200, 100869289), (296, 68154925), (370, 54523940), (740, 27261970), (925, 21809576), (1369, 14736200), (1480, 13630985), (1850, 10904788), (2738, 7368100), (3700, 5452394), (5476, 3684050), (6845, 2947240), (7400, 2726197), (10952, 1842025), (13690, 1473620), (27380, 736810), (34225, 589448), (54760, 368405), (68450, 294724), (73681, 273800), (136900, 147362)]