257881862

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{409}}^1\times {\mathrm{1553}}^1$

素因数の和:2000

約数の個数: 32

約数和(自身を含む): 458740800

約数和(自身を除く): 200858938

約数列:

[1, 2, 7, 14, 29, 58, 203, 406, 409, 818, 1553, 2863, 3106, 5726, 10871, 11861, 21742, 23722, 45037, 83027, 90074, 166054, 315259, 630518, 635177, 1270354, 4446239, 8892478, 18420133, 36840266, 128940931, 257881862]

約数ペア:

[(1, 257881862), (2, 128940931), (7, 36840266), (14, 18420133), (29, 8892478), (58, 4446239), (203, 1270354), (406, 635177), (409, 630518), (818, 315259), (1553, 166054), (2863, 90074), (3106, 83027), (5726, 45037), (10871, 23722), (11861, 21742)]