2178720500

素因数分解:

$2^2\times 5^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{20849}}^1$

素因数の和:20898

約数の個数: 96

約数和(自身を含む): 5464368000

約数和(自身を除く): 3285647500

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 25, 38, 44, 50, 55, 76, 95, 100, 110, 125, 190, 209, 220, 250, 275, 380, 418, 475, 500, 550, 836, 950, 1045, 1100, 1375, 1900, 2090, 2375, 2750, 4180, 4750, 5225, 5500, 9500, 10450, 20849, 20900, 26125, 41698, 52250, 83396, 104245, 104500, 208490, 229339, 396131, 416980, 458678, 521225, 792262, 917356, 1042450, 1146695, 1584524, 1980655, 2084900, 2293390, 2606125, 3961310, 4357441, 4586780, 5212250, 5733475, 7922620, 8714882, 9903275, 10424500, 11466950, 17429764, 19806550, 21787205, 22933900, 28667375, 39613100, 43574410, 49516375, 57334750, 87148820, 99032750, 108936025, 114669500, 198065500, 217872050, 435744100, 544680125, 1089360250, 2178720500]

約数ペア:

[(1, 2178720500), (2, 1089360250), (4, 544680125), (5, 435744100), (10, 217872050), (11, 198065500), (19, 114669500), (20, 108936025), (22, 99032750), (25, 87148820), (38, 57334750), (44, 49516375), (50, 43574410), (55, 39613100), (76, 28667375), (95, 22933900), (100, 21787205), (110, 19806550), (125, 17429764), (190, 11466950), (209, 10424500), (220, 9903275), (250, 8714882), (275, 7922620), (380, 5733475), (418, 5212250), (475, 4586780), (500, 4357441), (550, 3961310), (836, 2606125), (950, 2293390), (1045, 2084900), (1100, 1980655), (1375, 1584524), (1900, 1146695), (2090, 1042450), (2375, 917356), (2750, 792262), (4180, 521225), (4750, 458678), (5225, 416980), (5500, 396131), (9500, 229339), (10450, 208490), (20849, 104500), (20900, 104245), (26125, 83396), (41698, 52250)]