19879090

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{2347}}^1$

素因数の和:2383

約数の個数: 48

約数和(自身を含む): 44968896

約数和(自身を除く): 25089806

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 121, 154, 242, 385, 605, 770, 847, 1210, 1694, 2347, 4235, 4694, 8470, 11735, 16429, 23470, 25817, 32858, 51634, 82145, 129085, 164290, 180719, 258170, 283987, 361438, 567974, 903595, 1419935, 1807190, 1987909, 2839870, 3975818, 9939545, 19879090]

約数ペア:

[(1, 19879090), (2, 9939545), (5, 3975818), (7, 2839870), (10, 1987909), (11, 1807190), (14, 1419935), (22, 903595), (35, 567974), (55, 361438), (70, 283987), (77, 258170), (110, 180719), (121, 164290), (154, 129085), (242, 82145), (385, 51634), (605, 32858), (770, 25817), (847, 23470), (1210, 16429), (1694, 11735), (2347, 8470), (4235, 4694)]