81055480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{16747}}^1$

素因数の和:16780

約数の個数: 48

約数和(自身を含む): 200473560

約数和(自身を除く): 119418080

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 2420, 4840, 16747, 33494, 66988, 83735, 133976, 167470, 184217, 334940, 368434, 669880, 736868, 921085, 1473736, 1842170, 2026387, 3684340, 4052774, 7368680, 8105548, 10131935, 16211096, 20263870, 40527740, 81055480]

約数ペア:

[(1, 81055480), (2, 40527740), (4, 20263870), (5, 16211096), (8, 10131935), (10, 8105548), (11, 7368680), (20, 4052774), (22, 3684340), (40, 2026387), (44, 1842170), (55, 1473736), (88, 921085), (110, 736868), (121, 669880), (220, 368434), (242, 334940), (440, 184217), (484, 167470), (605, 133976), (968, 83735), (1210, 66988), (2420, 33494), (4840, 16747)]