20218752788

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{239}}^1\times {\mathrm{56099}}^1$

素因数の和:56384

約数の個数: 48

約数和(自身を含む): 39584160000

約数和(自身を除く): 19365407212

約数列:

[1, 2, 4, 13, 26, 29, 52, 58, 116, 239, 377, 478, 754, 956, 1508, 3107, 6214, 6931, 12428, 13862, 27724, 56099, 90103, 112198, 180206, 224396, 360412, 729287, 1458574, 1626871, 2917148, 3253742, 6507484, 13407661, 21149323, 26815322, 42298646, 53630644, 84597292, 174299593, 348599186, 388822169, 697198372, 777644338, 1555288676, 5054688197, 10109376394, 20218752788]

約数ペア:

[(1, 20218752788), (2, 10109376394), (4, 5054688197), (13, 1555288676), (26, 777644338), (29, 697198372), (52, 388822169), (58, 348599186), (116, 174299593), (239, 84597292), (377, 53630644), (478, 42298646), (754, 26815322), (956, 21149323), (1508, 13407661), (3107, 6507484), (6214, 3253742), (6931, 2917148), (12428, 1626871), (13862, 1458574), (27724, 729287), (56099, 360412), (90103, 224396), (112198, 180206)]