80490740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{569}}^1\times {\mathrm{643}}^1$

素因数の和:1232

約数の個数: 48

約数和(自身を含む): 185008320

約数和(自身を除く): 104517580

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 569, 643, 1138, 1286, 2276, 2572, 2845, 3215, 5690, 6259, 6430, 7073, 11380, 12518, 12860, 14146, 25036, 28292, 31295, 35365, 62590, 70730, 125180, 141460, 365867, 731734, 1463468, 1829335, 3658670, 4024537, 7317340, 8049074, 16098148, 20122685, 40245370, 80490740]

約数ペア:

[(1, 80490740), (2, 40245370), (4, 20122685), (5, 16098148), (10, 8049074), (11, 7317340), (20, 4024537), (22, 3658670), (44, 1829335), (55, 1463468), (110, 731734), (220, 365867), (569, 141460), (643, 125180), (1138, 70730), (1286, 62590), (2276, 35365), (2572, 31295), (2845, 28292), (3215, 25036), (5690, 14146), (6259, 12860), (6430, 12518), (7073, 11380)]