20111300

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{389}}^1$

素因数の和:461

約数の個数: 72

約数和(自身を含む): 48746880

約数和(自身を除く): 28635580

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 47, 50, 55, 94, 100, 110, 188, 220, 235, 275, 389, 470, 517, 550, 778, 940, 1034, 1100, 1175, 1556, 1945, 2068, 2350, 2585, 3890, 4279, 4700, 5170, 7780, 8558, 9725, 10340, 12925, 17116, 18283, 19450, 21395, 25850, 36566, 38900, 42790, 51700, 73132, 85580, 91415, 106975, 182830, 201113, 213950, 365660, 402226, 427900, 457075, 804452, 914150, 1005565, 1828300, 2011130, 4022260, 5027825, 10055650, 20111300]

約数ペア:

[(1, 20111300), (2, 10055650), (4, 5027825), (5, 4022260), (10, 2011130), (11, 1828300), (20, 1005565), (22, 914150), (25, 804452), (44, 457075), (47, 427900), (50, 402226), (55, 365660), (94, 213950), (100, 201113), (110, 182830), (188, 106975), (220, 91415), (235, 85580), (275, 73132), (389, 51700), (470, 42790), (517, 38900), (550, 36566), (778, 25850), (940, 21395), (1034, 19450), (1100, 18283), (1175, 17116), (1556, 12925), (1945, 10340), (2068, 9725), (2350, 8558), (2585, 7780), (3890, 5170), (4279, 4700)]