981304280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{11321}}^1$

素因数の和:11540

約数の個数: 64

約数和(自身を含む): 2421096480

約数和(自身を除く): 1439792200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 197, 220, 394, 440, 788, 985, 1576, 1970, 2167, 3940, 4334, 7880, 8668, 10835, 11321, 17336, 21670, 22642, 43340, 45284, 56605, 86680, 90568, 113210, 124531, 226420, 249062, 452840, 498124, 622655, 996248, 1245310, 2230237, 2490620, 4460474, 4981240, 8920948, 11151185, 17841896, 22302370, 24532607, 44604740, 49065214, 89209480, 98130428, 122663035, 196260856, 245326070, 490652140, 981304280]

約数ペア:

[(1, 981304280), (2, 490652140), (4, 245326070), (5, 196260856), (8, 122663035), (10, 98130428), (11, 89209480), (20, 49065214), (22, 44604740), (40, 24532607), (44, 22302370), (55, 17841896), (88, 11151185), (110, 8920948), (197, 4981240), (220, 4460474), (394, 2490620), (440, 2230237), (788, 1245310), (985, 996248), (1576, 622655), (1970, 498124), (2167, 452840), (3940, 249062), (4334, 226420), (7880, 124531), (8668, 113210), (10835, 90568), (11321, 86680), (17336, 56605), (21670, 45284), (22642, 43340)]