1991232358588

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{691}}^1\times {\mathrm{635849}}^1$

素因数の和:636658

約数の個数: 48

約数和(自身を含む): 3843911635200

約数和(自身を除く): 1852679276612

約数列:

[1, 2, 4, 11, 22, 44, 103, 206, 412, 691, 1133, 1382, 2266, 2764, 4532, 7601, 15202, 30404, 71173, 142346, 284692, 635849, 782903, 1271698, 1565806, 2543396, 3131612, 6994339, 13988678, 27977356, 65492447, 130984894, 261969788, 439371659, 720416917, 878743318, 1440833834, 1757486636, 2881667668, 4833088249, 9666176498, 19332352996, 45255280877, 90510561754, 181021123508, 497808089647, 995616179294, 1991232358588]

約数ペア:

[(1, 1991232358588), (2, 995616179294), (4, 497808089647), (11, 181021123508), (22, 90510561754), (44, 45255280877), (103, 19332352996), (206, 9666176498), (412, 4833088249), (691, 2881667668), (1133, 1757486636), (1382, 1440833834), (2266, 878743318), (2764, 720416917), (4532, 439371659), (7601, 261969788), (15202, 130984894), (30404, 65492447), (71173, 27977356), (142346, 13988678), (284692, 6994339), (635849, 3131612), (782903, 2543396), (1271698, 1565806)]