19983040

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{811}}^1$

素因数の和:846

約数の個数: 112

約数和(自身を含む): 59399424

約数和(自身を除く): 39416384

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 55, 56, 64, 70, 77, 80, 88, 110, 112, 140, 154, 160, 176, 220, 224, 280, 308, 320, 352, 385, 440, 448, 560, 616, 704, 770, 811, 880, 1120, 1232, 1540, 1622, 1760, 2240, 2464, 3080, 3244, 3520, 4055, 4928, 5677, 6160, 6488, 8110, 8921, 11354, 12320, 12976, 16220, 17842, 22708, 24640, 25952, 28385, 32440, 35684, 44605, 45416, 51904, 56770, 62447, 64880, 71368, 89210, 90832, 113540, 124894, 129760, 142736, 178420, 181664, 227080, 249788, 259520, 285472, 312235, 356840, 363328, 454160, 499576, 570944, 624470, 713680, 908320, 999152, 1248940, 1427360, 1816640, 1998304, 2497880, 2854720, 3996608, 4995760, 9991520, 19983040]

約数ペア:

[(1, 19983040), (2, 9991520), (4, 4995760), (5, 3996608), (7, 2854720), (8, 2497880), (10, 1998304), (11, 1816640), (14, 1427360), (16, 1248940), (20, 999152), (22, 908320), (28, 713680), (32, 624470), (35, 570944), (40, 499576), (44, 454160), (55, 363328), (56, 356840), (64, 312235), (70, 285472), (77, 259520), (80, 249788), (88, 227080), (110, 181664), (112, 178420), (140, 142736), (154, 129760), (160, 124894), (176, 113540), (220, 90832), (224, 89210), (280, 71368), (308, 64880), (320, 62447), (352, 56770), (385, 51904), (440, 45416), (448, 44605), (560, 35684), (616, 32440), (704, 28385), (770, 25952), (811, 24640), (880, 22708), (1120, 17842), (1232, 16220), (1540, 12976), (1622, 12320), (1760, 11354), (2240, 8921), (2464, 8110), (3080, 6488), (3244, 6160), (3520, 5677), (4055, 4928)]