28156725080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1488199}}^1$

素因数の和:1488264

約数の個数: 64

約数和(自身を含む): 70719264000

約数和(自身を除く): 42562538920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 43, 44, 55, 86, 88, 110, 172, 215, 220, 344, 430, 440, 473, 860, 946, 1720, 1892, 2365, 3784, 4730, 9460, 18920, 1488199, 2976398, 5952796, 7440995, 11905592, 14881990, 16370189, 29763980, 32740378, 59527960, 63992557, 65480756, 81850945, 127985114, 130961512, 163701890, 255970228, 319962785, 327403780, 511940456, 639925570, 654807560, 703918127, 1279851140, 1407836254, 2559702280, 2815672508, 3519590635, 5631345016, 7039181270, 14078362540, 28156725080]

約数ペア:

[(1, 28156725080), (2, 14078362540), (4, 7039181270), (5, 5631345016), (8, 3519590635), (10, 2815672508), (11, 2559702280), (20, 1407836254), (22, 1279851140), (40, 703918127), (43, 654807560), (44, 639925570), (55, 511940456), (86, 327403780), (88, 319962785), (110, 255970228), (172, 163701890), (215, 130961512), (220, 127985114), (344, 81850945), (430, 65480756), (440, 63992557), (473, 59527960), (860, 32740378), (946, 29763980), (1720, 16370189), (1892, 14881990), (2365, 11905592), (3784, 7440995), (4730, 5952796), (9460, 2976398), (18920, 1488199)]