261863728

素因数分解:

$2^4\times 7^1\times {\mathrm{61}}^1\times {\mathrm{38329}}^1$

素因数の和:38405

約数の個数: 40

約数和(自身を含む): 589362080

約数和(自身を除く): 327498352

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 61, 112, 122, 244, 427, 488, 854, 976, 1708, 3416, 6832, 38329, 76658, 153316, 268303, 306632, 536606, 613264, 1073212, 2146424, 2338069, 4292848, 4676138, 9352276, 16366483, 18704552, 32732966, 37409104, 65465932, 130931864, 261863728]

約数ペア:

[(1, 261863728), (2, 130931864), (4, 65465932), (7, 37409104), (8, 32732966), (14, 18704552), (16, 16366483), (28, 9352276), (56, 4676138), (61, 4292848), (112, 2338069), (122, 2146424), (244, 1073212), (427, 613264), (488, 536606), (854, 306632), (976, 268303), (1708, 153316), (3416, 76658), (6832, 38329)]