19687540

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{337}}^1$

素因数の和:496

約数の個数: 48

約数和(自身を含む): 43610112

約数和(自身を除く): 23922572

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 127, 230, 254, 337, 460, 508, 635, 674, 1270, 1348, 1685, 2540, 2921, 3370, 5842, 6740, 7751, 11684, 14605, 15502, 29210, 31004, 38755, 42799, 58420, 77510, 85598, 155020, 171196, 213995, 427990, 855980, 984377, 1968754, 3937508, 4921885, 9843770, 19687540]

約数ペア:

[(1, 19687540), (2, 9843770), (4, 4921885), (5, 3937508), (10, 1968754), (20, 984377), (23, 855980), (46, 427990), (92, 213995), (115, 171196), (127, 155020), (230, 85598), (254, 77510), (337, 58420), (460, 42799), (508, 38755), (635, 31004), (674, 29210), (1270, 15502), (1348, 14605), (1685, 11684), (2540, 7751), (2921, 6740), (3370, 5842)]