76644820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{197}}^1\times {\mathrm{397}}^1$

素因数の和:617

約数の個数: 72

約数和(自身を含む): 188656776

約数和(自身を除く): 112011956

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 197, 245, 394, 397, 490, 788, 794, 980, 985, 1379, 1588, 1970, 1985, 2758, 2779, 3940, 3970, 5516, 5558, 6895, 7940, 9653, 11116, 13790, 13895, 19306, 19453, 27580, 27790, 38612, 38906, 48265, 55580, 77812, 78209, 96530, 97265, 156418, 193060, 194530, 312836, 389060, 391045, 547463, 782090, 1094926, 1564180, 2189852, 2737315, 3832241, 5474630, 7664482, 10949260, 15328964, 19161205, 38322410, 76644820]

約数ペア:

[(1, 76644820), (2, 38322410), (4, 19161205), (5, 15328964), (7, 10949260), (10, 7664482), (14, 5474630), (20, 3832241), (28, 2737315), (35, 2189852), (49, 1564180), (70, 1094926), (98, 782090), (140, 547463), (196, 391045), (197, 389060), (245, 312836), (394, 194530), (397, 193060), (490, 156418), (788, 97265), (794, 96530), (980, 78209), (985, 77812), (1379, 55580), (1588, 48265), (1970, 38906), (1985, 38612), (2758, 27790), (2779, 27580), (3940, 19453), (3970, 19306), (5516, 13895), (5558, 13790), (6895, 11116), (7940, 9653)]