205548080

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{271}}^1\times {\mathrm{499}}^1$

素因数の和:802

約数の個数: 80

約数和(自身を含む): 505920000

約数和(自身を除く): 300371920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 271, 304, 380, 499, 542, 760, 998, 1084, 1355, 1520, 1996, 2168, 2495, 2710, 3992, 4336, 4990, 5149, 5420, 7984, 9481, 9980, 10298, 10840, 18962, 19960, 20596, 21680, 25745, 37924, 39920, 41192, 47405, 51490, 75848, 82384, 94810, 102980, 135229, 151696, 189620, 205960, 270458, 379240, 411920, 540916, 676145, 758480, 1081832, 1352290, 2163664, 2569351, 2704580, 5138702, 5409160, 10277404, 10818320, 12846755, 20554808, 25693510, 41109616, 51387020, 102774040, 205548080]

約数ペア:

[(1, 205548080), (2, 102774040), (4, 51387020), (5, 41109616), (8, 25693510), (10, 20554808), (16, 12846755), (19, 10818320), (20, 10277404), (38, 5409160), (40, 5138702), (76, 2704580), (80, 2569351), (95, 2163664), (152, 1352290), (190, 1081832), (271, 758480), (304, 676145), (380, 540916), (499, 411920), (542, 379240), (760, 270458), (998, 205960), (1084, 189620), (1355, 151696), (1520, 135229), (1996, 102980), (2168, 94810), (2495, 82384), (2710, 75848), (3992, 51490), (4336, 47405), (4990, 41192), (5149, 39920), (5420, 37924), (7984, 25745), (9481, 21680), (9980, 20596), (10298, 19960), (10840, 18962)]