19768600

素因数分解:

$2^3\times 5^2\times {\mathrm{97}}^1\times {\mathrm{1019}}^1$

素因数の和:1132

約数の個数: 48

約数和(自身を含む): 46481400

約数和(自身を除く): 26712800

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 97, 100, 194, 200, 388, 485, 776, 970, 1019, 1940, 2038, 2425, 3880, 4076, 4850, 5095, 8152, 9700, 10190, 19400, 20380, 25475, 40760, 50950, 98843, 101900, 197686, 203800, 395372, 494215, 790744, 988430, 1976860, 2471075, 3953720, 4942150, 9884300, 19768600]

約数ペア:

[(1, 19768600), (2, 9884300), (4, 4942150), (5, 3953720), (8, 2471075), (10, 1976860), (20, 988430), (25, 790744), (40, 494215), (50, 395372), (97, 203800), (100, 197686), (194, 101900), (200, 98843), (388, 50950), (485, 40760), (776, 25475), (970, 20380), (1019, 19400), (1940, 10190), (2038, 9700), (2425, 8152), (3880, 5095), (4076, 4850)]