355908080

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{2053}}^1$

素因数の和:2274

約数の個数: 80

約数和(自身を含む): 907736544

約数和(自身を除く): 551828464

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 197, 220, 394, 440, 788, 880, 985, 1576, 1970, 2053, 2167, 3152, 3940, 4106, 4334, 7880, 8212, 8668, 10265, 10835, 15760, 16424, 17336, 20530, 21670, 22583, 32848, 34672, 41060, 43340, 45166, 82120, 86680, 90332, 112915, 164240, 173360, 180664, 225830, 361328, 404441, 451660, 808882, 903320, 1617764, 1806640, 2022205, 3235528, 4044410, 4448851, 6471056, 8088820, 8897702, 16177640, 17795404, 22244255, 32355280, 35590808, 44488510, 71181616, 88977020, 177954040, 355908080]

約数ペア:

[(1, 355908080), (2, 177954040), (4, 88977020), (5, 71181616), (8, 44488510), (10, 35590808), (11, 32355280), (16, 22244255), (20, 17795404), (22, 16177640), (40, 8897702), (44, 8088820), (55, 6471056), (80, 4448851), (88, 4044410), (110, 3235528), (176, 2022205), (197, 1806640), (220, 1617764), (394, 903320), (440, 808882), (788, 451660), (880, 404441), (985, 361328), (1576, 225830), (1970, 180664), (2053, 173360), (2167, 164240), (3152, 112915), (3940, 90332), (4106, 86680), (4334, 82120), (7880, 45166), (8212, 43340), (8668, 41060), (10265, 34672), (10835, 32848), (15760, 22583), (16424, 21670), (17336, 20530)]