20645820160

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{11579}}^1$

素因数の和:11806

約数の個数: 144

約数和(自身を含む): 56806848000

約数和(自身を除く): 36161027840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 199, 224, 256, 280, 320, 398, 448, 560, 640, 796, 896, 995, 1120, 1280, 1393, 1592, 1792, 1990, 2240, 2786, 3184, 3980, 4480, 5572, 6368, 6965, 7960, 8960, 11144, 11579, 12736, 13930, 15920, 22288, 23158, 25472, 27860, 31840, 44576, 46316, 50944, 55720, 57895, 63680, 81053, 89152, 92632, 111440, 115790, 127360, 162106, 178304, 185264, 222880, 231580, 254720, 324212, 356608, 370528, 405265, 445760, 463160, 648424, 741056, 810530, 891520, 926320, 1296848, 1482112, 1621060, 1783040, 1852640, 2304221, 2593696, 2964224, 3242120, 3705280, 4608442, 5187392, 6484240, 7410560, 9216884, 10374784, 11521105, 12968480, 14821120, 16129547, 18433768, 20749568, 23042210, 25936960, 32259094, 36867536, 46084420, 51873920, 64518188, 73735072, 80647735, 92168840, 103747840, 129036376, 147470144, 161295470, 184337680, 258072752, 294940288, 322590940, 368675360, 516145504, 589880576, 645181880, 737350720, 1032291008, 1290363760, 1474701440, 2064582016, 2580727520, 2949402880, 4129164032, 5161455040, 10322910080, 20645820160]

約数ペア:

[(1, 20645820160), (2, 10322910080), (4, 5161455040), (5, 4129164032), (7, 2949402880), (8, 2580727520), (10, 2064582016), (14, 1474701440), (16, 1290363760), (20, 1032291008), (28, 737350720), (32, 645181880), (35, 589880576), (40, 516145504), (56, 368675360), (64, 322590940), (70, 294940288), (80, 258072752), (112, 184337680), (128, 161295470), (140, 147470144), (160, 129036376), (199, 103747840), (224, 92168840), (256, 80647735), (280, 73735072), (320, 64518188), (398, 51873920), (448, 46084420), (560, 36867536), (640, 32259094), (796, 25936960), (896, 23042210), (995, 20749568), (1120, 18433768), (1280, 16129547), (1393, 14821120), (1592, 12968480), (1792, 11521105), (1990, 10374784), (2240, 9216884), (2786, 7410560), (3184, 6484240), (3980, 5187392), (4480, 4608442), (5572, 3705280), (6368, 3242120), (6965, 2964224), (7960, 2593696), (8960, 2304221), (11144, 1852640), (11579, 1783040), (12736, 1621060), (13930, 1482112), (15920, 1296848), (22288, 926320), (23158, 891520), (25472, 810530), (27860, 741056), (31840, 648424), (44576, 463160), (46316, 445760), (50944, 405265), (55720, 370528), (57895, 356608), (63680, 324212), (81053, 254720), (89152, 231580), (92632, 222880), (111440, 185264), (115790, 178304), (127360, 162106)]