40987760

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{991}}^1$

素因数の和:1062

約数の個数: 80

約数和(自身を含む): 106278912

約数和(自身を除く): 65291152

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 47, 55, 80, 88, 94, 110, 176, 188, 220, 235, 376, 440, 470, 517, 752, 880, 940, 991, 1034, 1880, 1982, 2068, 2585, 3760, 3964, 4136, 4955, 5170, 7928, 8272, 9910, 10340, 10901, 15856, 19820, 20680, 21802, 39640, 41360, 43604, 46577, 54505, 79280, 87208, 93154, 109010, 174416, 186308, 218020, 232885, 372616, 436040, 465770, 512347, 745232, 872080, 931540, 1024694, 1863080, 2049388, 2561735, 3726160, 4098776, 5123470, 8197552, 10246940, 20493880, 40987760]

約数ペア:

[(1, 40987760), (2, 20493880), (4, 10246940), (5, 8197552), (8, 5123470), (10, 4098776), (11, 3726160), (16, 2561735), (20, 2049388), (22, 1863080), (40, 1024694), (44, 931540), (47, 872080), (55, 745232), (80, 512347), (88, 465770), (94, 436040), (110, 372616), (176, 232885), (188, 218020), (220, 186308), (235, 174416), (376, 109010), (440, 93154), (470, 87208), (517, 79280), (752, 54505), (880, 46577), (940, 43604), (991, 41360), (1034, 39640), (1880, 21802), (1982, 20680), (2068, 19820), (2585, 15856), (3760, 10901), (3964, 10340), (4136, 9910), (4955, 8272), (5170, 7928)]