127637540

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{1621}}^1$

素因数の和:1788

約数の個数: 48

約数和(自身を含む): 279035904

約数和(自身を除く): 151398364

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 127, 155, 254, 310, 508, 620, 635, 1270, 1621, 2540, 3242, 3937, 6484, 7874, 8105, 15748, 16210, 19685, 32420, 39370, 50251, 78740, 100502, 201004, 205867, 251255, 411734, 502510, 823468, 1005020, 1029335, 2058670, 4117340, 6381877, 12763754, 25527508, 31909385, 63818770, 127637540]

約数ペア:

[(1, 127637540), (2, 63818770), (4, 31909385), (5, 25527508), (10, 12763754), (20, 6381877), (31, 4117340), (62, 2058670), (124, 1029335), (127, 1005020), (155, 823468), (254, 502510), (310, 411734), (508, 251255), (620, 205867), (635, 201004), (1270, 100502), (1621, 78740), (2540, 50251), (3242, 39370), (3937, 32420), (6484, 19685), (7874, 16210), (8105, 15748)]