312609880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{491}}^1\times {\mathrm{1447}}^1$

素因数の和:1960

約数の個数: 64

約数和(自身を含む): 769409280

約数和(自身を除く): 456799400

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 491, 982, 1447, 1964, 2455, 2894, 3928, 4910, 5401, 5788, 7235, 9820, 10802, 11576, 14470, 15917, 19640, 21604, 27005, 28940, 31834, 43208, 54010, 57880, 63668, 79585, 108020, 127336, 159170, 216040, 318340, 636680, 710477, 1420954, 2841908, 3552385, 5683816, 7104770, 7815247, 14209540, 15630494, 28419080, 31260988, 39076235, 62521976, 78152470, 156304940, 312609880]

約数ペア:

[(1, 312609880), (2, 156304940), (4, 78152470), (5, 62521976), (8, 39076235), (10, 31260988), (11, 28419080), (20, 15630494), (22, 14209540), (40, 7815247), (44, 7104770), (55, 5683816), (88, 3552385), (110, 2841908), (220, 1420954), (440, 710477), (491, 636680), (982, 318340), (1447, 216040), (1964, 159170), (2455, 127336), (2894, 108020), (3928, 79585), (4910, 63668), (5401, 57880), (5788, 54010), (7235, 43208), (9820, 31834), (10802, 28940), (11576, 27005), (14470, 21604), (15917, 19640)]