20804880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{3769}}^1$

素因数の和:3808

約数の個数: 80

約数和(自身を含む): 67317120

約数和(自身を除く): 46512240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 40, 46, 48, 60, 69, 80, 92, 115, 120, 138, 184, 230, 240, 276, 345, 368, 460, 552, 690, 920, 1104, 1380, 1840, 2760, 3769, 5520, 7538, 11307, 15076, 18845, 22614, 30152, 37690, 45228, 56535, 60304, 75380, 86687, 90456, 113070, 150760, 173374, 180912, 226140, 260061, 301520, 346748, 433435, 452280, 520122, 693496, 866870, 904560, 1040244, 1300305, 1386992, 1733740, 2080488, 2600610, 3467480, 4160976, 5201220, 6934960, 10402440, 20804880]

約数ペア:

[(1, 20804880), (2, 10402440), (3, 6934960), (4, 5201220), (5, 4160976), (6, 3467480), (8, 2600610), (10, 2080488), (12, 1733740), (15, 1386992), (16, 1300305), (20, 1040244), (23, 904560), (24, 866870), (30, 693496), (40, 520122), (46, 452280), (48, 433435), (60, 346748), (69, 301520), (80, 260061), (92, 226140), (115, 180912), (120, 173374), (138, 150760), (184, 113070), (230, 90456), (240, 86687), (276, 75380), (345, 60304), (368, 56535), (460, 45228), (552, 37690), (690, 30152), (920, 22614), (1104, 18845), (1380, 15076), (1840, 11307), (2760, 7538), (3769, 5520)]