844158020

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{10613}}^1$

素因数の和:10760

約数の個数: 48

約数和(自身を含む): 1834863408

約数和(自身を除く): 990705388

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 97, 164, 194, 205, 388, 410, 485, 820, 970, 1940, 3977, 7954, 10613, 15908, 19885, 21226, 39770, 42452, 53065, 79540, 106130, 212260, 435133, 870266, 1029461, 1740532, 2058922, 2175665, 4117844, 4351330, 5147305, 8702660, 10294610, 20589220, 42207901, 84415802, 168831604, 211039505, 422079010, 844158020]

約数ペア:

[(1, 844158020), (2, 422079010), (4, 211039505), (5, 168831604), (10, 84415802), (20, 42207901), (41, 20589220), (82, 10294610), (97, 8702660), (164, 5147305), (194, 4351330), (205, 4117844), (388, 2175665), (410, 2058922), (485, 1740532), (820, 1029461), (970, 870266), (1940, 435133), (3977, 212260), (7954, 106130), (10613, 79540), (15908, 53065), (19885, 42452), (21226, 39770)]