18680493920

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{10613917}}^1$

素因数の和:10613943

約数の個数: 48

約数和(自身を含む): 48144732048

約数和(自身を除く): 29464238128

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 880, 1760, 10613917, 21227834, 42455668, 53069585, 84911336, 106139170, 116753087, 169822672, 212278340, 233506174, 339645344, 424556680, 467012348, 583765435, 849113360, 934024696, 1167530870, 1698226720, 1868049392, 2335061740, 3736098784, 4670123480, 9340246960, 18680493920]

約数ペア:

[(1, 18680493920), (2, 9340246960), (4, 4670123480), (5, 3736098784), (8, 2335061740), (10, 1868049392), (11, 1698226720), (16, 1167530870), (20, 934024696), (22, 849113360), (32, 583765435), (40, 467012348), (44, 424556680), (55, 339645344), (80, 233506174), (88, 212278340), (110, 169822672), (160, 116753087), (176, 106139170), (220, 84911336), (352, 53069585), (440, 42455668), (880, 21227834), (1760, 10613917)]