40578680

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{499}}^1$

素因数の和:636

約数の個数: 64

約数和(自身を含む): 97200000

約数和(自身を除く): 56621320

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 107, 152, 190, 214, 380, 428, 499, 535, 760, 856, 998, 1070, 1996, 2033, 2140, 2495, 3992, 4066, 4280, 4990, 8132, 9481, 9980, 10165, 16264, 18962, 19960, 20330, 37924, 40660, 47405, 53393, 75848, 81320, 94810, 106786, 189620, 213572, 266965, 379240, 427144, 533930, 1014467, 1067860, 2028934, 2135720, 4057868, 5072335, 8115736, 10144670, 20289340, 40578680]

約数ペア:

[(1, 40578680), (2, 20289340), (4, 10144670), (5, 8115736), (8, 5072335), (10, 4057868), (19, 2135720), (20, 2028934), (38, 1067860), (40, 1014467), (76, 533930), (95, 427144), (107, 379240), (152, 266965), (190, 213572), (214, 189620), (380, 106786), (428, 94810), (499, 81320), (535, 75848), (760, 53393), (856, 47405), (998, 40660), (1070, 37924), (1996, 20330), (2033, 19960), (2140, 18962), (2495, 16264), (3992, 10165), (4066, 9980), (4280, 9481), (4990, 8132)]