17787860

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1\times {\mathrm{173}}^1$

素因数の和:332

約数の個数: 48

約数和(自身を含む): 38673936

約数和(自身を除く): 20886076

約数列:

[1, 2, 4, 5, 10, 20, 53, 97, 106, 173, 194, 212, 265, 346, 388, 485, 530, 692, 865, 970, 1060, 1730, 1940, 3460, 5141, 9169, 10282, 16781, 18338, 20564, 25705, 33562, 36676, 45845, 51410, 67124, 83905, 91690, 102820, 167810, 183380, 335620, 889393, 1778786, 3557572, 4446965, 8893930, 17787860]

約数ペア:

[(1, 17787860), (2, 8893930), (4, 4446965), (5, 3557572), (10, 1778786), (20, 889393), (53, 335620), (97, 183380), (106, 167810), (173, 102820), (194, 91690), (212, 83905), (265, 67124), (346, 51410), (388, 45845), (485, 36676), (530, 33562), (692, 25705), (865, 20564), (970, 18338), (1060, 16781), (1730, 10282), (1940, 9169), (3460, 5141)]