81373600

素因数分解:

$2^5\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1321}}^1$

素因数の和:1359

約数の個数: 144

約数和(自身を含む): 247859136

約数和(自身を除く): 166485536

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 25, 28, 32, 35, 40, 44, 50, 55, 56, 70, 77, 80, 88, 100, 110, 112, 140, 154, 160, 175, 176, 200, 220, 224, 275, 280, 308, 350, 352, 385, 400, 440, 550, 560, 616, 700, 770, 800, 880, 1100, 1120, 1232, 1321, 1400, 1540, 1760, 1925, 2200, 2464, 2642, 2800, 3080, 3850, 4400, 5284, 5600, 6160, 6605, 7700, 8800, 9247, 10568, 12320, 13210, 14531, 15400, 18494, 21136, 26420, 29062, 30800, 33025, 36988, 42272, 46235, 52840, 58124, 61600, 66050, 72655, 73976, 92470, 101717, 105680, 116248, 132100, 145310, 147952, 184940, 203434, 211360, 231175, 232496, 264200, 290620, 295904, 363275, 369880, 406868, 462350, 464992, 508585, 528400, 581240, 726550, 739760, 813736, 924700, 1017170, 1056800, 1162480, 1453100, 1479520, 1627472, 1849400, 2034340, 2324960, 2542925, 2906200, 3254944, 3698800, 4068680, 5085850, 5812400, 7397600, 8137360, 10171700, 11624800, 16274720, 20343400, 40686800, 81373600]

約数ペア:

[(1, 81373600), (2, 40686800), (4, 20343400), (5, 16274720), (7, 11624800), (8, 10171700), (10, 8137360), (11, 7397600), (14, 5812400), (16, 5085850), (20, 4068680), (22, 3698800), (25, 3254944), (28, 2906200), (32, 2542925), (35, 2324960), (40, 2034340), (44, 1849400), (50, 1627472), (55, 1479520), (56, 1453100), (70, 1162480), (77, 1056800), (80, 1017170), (88, 924700), (100, 813736), (110, 739760), (112, 726550), (140, 581240), (154, 528400), (160, 508585), (175, 464992), (176, 462350), (200, 406868), (220, 369880), (224, 363275), (275, 295904), (280, 290620), (308, 264200), (350, 232496), (352, 231175), (385, 211360), (400, 203434), (440, 184940), (550, 147952), (560, 145310), (616, 132100), (700, 116248), (770, 105680), (800, 101717), (880, 92470), (1100, 73976), (1120, 72655), (1232, 66050), (1321, 61600), (1400, 58124), (1540, 52840), (1760, 46235), (1925, 42272), (2200, 36988), (2464, 33025), (2642, 30800), (2800, 29062), (3080, 26420), (3850, 21136), (4400, 18494), (5284, 15400), (5600, 14531), (6160, 13210), (6605, 12320), (7700, 10568), (8800, 9247)]