685328

素因数分解:

$2^4\times 7^1\times {\mathrm{29}}^1\times {\mathrm{211}}^1$

素因数の和:255

約数の個数: 40

約数和(自身を含む): 1577280

約数和(自身を除く): 891952

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 56, 58, 112, 116, 203, 211, 232, 406, 422, 464, 812, 844, 1477, 1624, 1688, 2954, 3248, 3376, 5908, 6119, 11816, 12238, 23632, 24476, 42833, 48952, 85666, 97904, 171332, 342664, 685328]

約数ペア:

[(1, 685328), (2, 342664), (4, 171332), (7, 97904), (8, 85666), (14, 48952), (16, 42833), (28, 24476), (29, 23632), (56, 12238), (58, 11816), (112, 6119), (116, 5908), (203, 3376), (211, 3248), (232, 2954), (406, 1688), (422, 1624), (464, 1477), (812, 844)]