81641350

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{47}}^1\times {\mathrm{709}}^1$

素因数の和:782

約数の個数: 72

約数和(自身を含む): 180658080

約数和(自身を除く): 99016730

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 47, 49, 50, 70, 94, 98, 175, 235, 245, 329, 350, 470, 490, 658, 709, 1175, 1225, 1418, 1645, 2303, 2350, 2450, 3290, 3545, 4606, 4963, 7090, 8225, 9926, 11515, 16450, 17725, 23030, 24815, 33323, 34741, 35450, 49630, 57575, 66646, 69482, 115150, 124075, 166615, 173705, 233261, 248150, 333230, 347410, 466522, 833075, 868525, 1166305, 1632827, 1666150, 1737050, 2332610, 3265654, 5831525, 8164135, 11663050, 16328270, 40820675, 81641350]

約数ペア:

[(1, 81641350), (2, 40820675), (5, 16328270), (7, 11663050), (10, 8164135), (14, 5831525), (25, 3265654), (35, 2332610), (47, 1737050), (49, 1666150), (50, 1632827), (70, 1166305), (94, 868525), (98, 833075), (175, 466522), (235, 347410), (245, 333230), (329, 248150), (350, 233261), (470, 173705), (490, 166615), (658, 124075), (709, 115150), (1175, 69482), (1225, 66646), (1418, 57575), (1645, 49630), (2303, 35450), (2350, 34741), (2450, 33323), (3290, 24815), (3545, 23030), (4606, 17725), (4963, 16450), (7090, 11515), (8225, 9926)]