19397720

素因数分解:

$2^3\times 5^1\times {\mathrm{337}}^1\times {\mathrm{1439}}^1$

素因数の和:1787

約数の個数: 32

約数和(自身を含む): 43804800

約数和(自身を除く): 24407080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 337, 674, 1348, 1439, 1685, 2696, 2878, 3370, 5756, 6740, 7195, 11512, 13480, 14390, 28780, 57560, 484943, 969886, 1939772, 2424715, 3879544, 4849430, 9698860, 19397720]

約数ペア:

[(1, 19397720), (2, 9698860), (4, 4849430), (5, 3879544), (8, 2424715), (10, 1939772), (20, 969886), (40, 484943), (337, 57560), (674, 28780), (1348, 14390), (1439, 13480), (1685, 11512), (2696, 7195), (2878, 6740), (3370, 5756)]