51641480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{241}}^1\times {\mathrm{487}}^1$

素因数の和:750

約数の個数: 64

約数和(自身を含む): 127543680

約数和(自身を除く): 75902200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 241, 440, 482, 487, 964, 974, 1205, 1928, 1948, 2410, 2435, 2651, 3896, 4820, 4870, 5302, 5357, 9640, 9740, 10604, 10714, 13255, 19480, 21208, 21428, 26510, 26785, 42856, 53020, 53570, 106040, 107140, 117367, 214280, 234734, 469468, 586835, 938936, 1173670, 1291037, 2347340, 2582074, 4694680, 5164148, 6455185, 10328296, 12910370, 25820740, 51641480]

約数ペア:

[(1, 51641480), (2, 25820740), (4, 12910370), (5, 10328296), (8, 6455185), (10, 5164148), (11, 4694680), (20, 2582074), (22, 2347340), (40, 1291037), (44, 1173670), (55, 938936), (88, 586835), (110, 469468), (220, 234734), (241, 214280), (440, 117367), (482, 107140), (487, 106040), (964, 53570), (974, 53020), (1205, 42856), (1928, 26785), (1948, 26510), (2410, 21428), (2435, 21208), (2651, 19480), (3896, 13255), (4820, 10714), (4870, 10604), (5302, 9740), (5357, 9640)]