1820367040

素因数分解:

$2^6\times 5^1\times {\mathrm{487}}^1\times {\mathrm{11681}}^1$

素因数の和:12185

約数の個数: 56

約数和(自身を含む): 4344021792

約数和(自身を除く): 2523654752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 487, 974, 1948, 2435, 3896, 4870, 7792, 9740, 11681, 15584, 19480, 23362, 31168, 38960, 46724, 58405, 77920, 93448, 116810, 155840, 186896, 233620, 373792, 467240, 747584, 934480, 1868960, 3737920, 5688647, 11377294, 22754588, 28443235, 45509176, 56886470, 91018352, 113772940, 182036704, 227545880, 364073408, 455091760, 910183520, 1820367040]

約数ペア:

[(1, 1820367040), (2, 910183520), (4, 455091760), (5, 364073408), (8, 227545880), (10, 182036704), (16, 113772940), (20, 91018352), (32, 56886470), (40, 45509176), (64, 28443235), (80, 22754588), (160, 11377294), (320, 5688647), (487, 3737920), (974, 1868960), (1948, 934480), (2435, 747584), (3896, 467240), (4870, 373792), (7792, 233620), (9740, 186896), (11681, 155840), (15584, 116810), (19480, 93448), (23362, 77920), (31168, 58405), (38960, 46724)]