20542280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{46687}}^1$

素因数の和:46709

約数の個数: 32

約数和(自身を含む): 50423040

約数和(自身を除く): 29880760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 46687, 93374, 186748, 233435, 373496, 466870, 513557, 933740, 1027114, 1867480, 2054228, 2567785, 4108456, 5135570, 10271140, 20542280]

約数ペア:

[(1, 20542280), (2, 10271140), (4, 5135570), (5, 4108456), (8, 2567785), (10, 2054228), (11, 1867480), (20, 1027114), (22, 933740), (40, 513557), (44, 466870), (55, 373496), (88, 233435), (110, 186748), (220, 93374), (440, 46687)]