19737560

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{5087}}^1$

素因数の和:5195

約数の個数: 32

約数和(自身を含む): 44876160

約数和(自身を除く): 25138600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 5087, 10174, 20348, 25435, 40696, 50870, 101740, 203480, 493439, 986878, 1973756, 2467195, 3947512, 4934390, 9868780, 19737560]

約数ペア:

[(1, 19737560), (2, 9868780), (4, 4934390), (5, 3947512), (8, 2467195), (10, 1973756), (20, 986878), (40, 493439), (97, 203480), (194, 101740), (388, 50870), (485, 40696), (776, 25435), (970, 20348), (1940, 10174), (3880, 5087)]