19662140

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{7741}}^1$

素因数の和:7877

約数の個数: 24

約数和(自身を含む): 41620992

約数和(自身を除く): 21958852

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 508, 635, 1270, 2540, 7741, 15482, 30964, 38705, 77410, 154820, 983107, 1966214, 3932428, 4915535, 9831070, 19662140]

約数ペア:

[(1, 19662140), (2, 9831070), (4, 4915535), (5, 3932428), (10, 1966214), (20, 983107), (127, 154820), (254, 77410), (508, 38705), (635, 30964), (1270, 15482), (2540, 7741)]