20765500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{349}}^1$

素因数の和:392

約数の個数: 96

約数和(自身を含む): 55036800

約数和(自身を除く): 34271300

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 25, 28, 34, 35, 50, 68, 70, 85, 100, 119, 125, 140, 170, 175, 238, 250, 340, 349, 350, 425, 476, 500, 595, 698, 700, 850, 875, 1190, 1396, 1700, 1745, 1750, 2125, 2380, 2443, 2975, 3490, 3500, 4250, 4886, 5933, 5950, 6980, 8500, 8725, 9772, 11866, 11900, 12215, 14875, 17450, 23732, 24430, 29665, 29750, 34900, 41531, 43625, 48860, 59330, 59500, 61075, 83062, 87250, 118660, 122150, 148325, 166124, 174500, 207655, 244300, 296650, 305375, 415310, 593300, 610750, 741625, 830620, 1038275, 1221500, 1483250, 2076550, 2966500, 4153100, 5191375, 10382750, 20765500]

約数ペア:

[(1, 20765500), (2, 10382750), (4, 5191375), (5, 4153100), (7, 2966500), (10, 2076550), (14, 1483250), (17, 1221500), (20, 1038275), (25, 830620), (28, 741625), (34, 610750), (35, 593300), (50, 415310), (68, 305375), (70, 296650), (85, 244300), (100, 207655), (119, 174500), (125, 166124), (140, 148325), (170, 122150), (175, 118660), (238, 87250), (250, 83062), (340, 61075), (349, 59500), (350, 59330), (425, 48860), (476, 43625), (500, 41531), (595, 34900), (698, 29750), (700, 29665), (850, 24430), (875, 23732), (1190, 17450), (1396, 14875), (1700, 12215), (1745, 11900), (1750, 11866), (2125, 9772), (2380, 8725), (2443, 8500), (2975, 6980), (3490, 5950), (3500, 5933), (4250, 4886)]