21077888900

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{673}}^1\times {\mathrm{10103}}^1$

素因数の和:10821

約数の個数: 72

約数和(自身を含む): 47289306624

約数和(自身を除く): 26211417724

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 155, 310, 620, 673, 775, 1346, 1550, 2692, 3100, 3365, 6730, 10103, 13460, 16825, 20206, 20863, 33650, 40412, 41726, 50515, 67300, 83452, 101030, 104315, 202060, 208630, 252575, 313193, 417260, 505150, 521575, 626386, 1010300, 1043150, 1252772, 1565965, 2086300, 3131930, 6263860, 6799319, 7829825, 13598638, 15659650, 27197276, 31319300, 33996595, 67993190, 135986380, 169982975, 210778889, 339965950, 421557778, 679931900, 843115556, 1053894445, 2107788890, 4215577780, 5269472225, 10538944450, 21077888900]

約数ペア:

[(1, 21077888900), (2, 10538944450), (4, 5269472225), (5, 4215577780), (10, 2107788890), (20, 1053894445), (25, 843115556), (31, 679931900), (50, 421557778), (62, 339965950), (100, 210778889), (124, 169982975), (155, 135986380), (310, 67993190), (620, 33996595), (673, 31319300), (775, 27197276), (1346, 15659650), (1550, 13598638), (2692, 7829825), (3100, 6799319), (3365, 6263860), (6730, 3131930), (10103, 2086300), (13460, 1565965), (16825, 1252772), (20206, 1043150), (20863, 1010300), (33650, 626386), (40412, 521575), (41726, 505150), (50515, 417260), (67300, 313193), (83452, 252575), (101030, 208630), (104315, 202060)]