20655800

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{229}}^1$

素因数の和:297

約数の個数: 96

約数和(自身を含む): 53902800

約数和(自身を除く): 33247000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 41, 44, 50, 55, 82, 88, 100, 110, 164, 200, 205, 220, 229, 275, 328, 410, 440, 451, 458, 550, 820, 902, 916, 1025, 1100, 1145, 1640, 1804, 1832, 2050, 2200, 2255, 2290, 2519, 3608, 4100, 4510, 4580, 5038, 5725, 8200, 9020, 9160, 9389, 10076, 11275, 11450, 12595, 18040, 18778, 20152, 22550, 22900, 25190, 37556, 45100, 45800, 46945, 50380, 62975, 75112, 90200, 93890, 100760, 103279, 125950, 187780, 206558, 234725, 251900, 375560, 413116, 469450, 503800, 516395, 826232, 938900, 1032790, 1877800, 2065580, 2581975, 4131160, 5163950, 10327900, 20655800]

約数ペア:

[(1, 20655800), (2, 10327900), (4, 5163950), (5, 4131160), (8, 2581975), (10, 2065580), (11, 1877800), (20, 1032790), (22, 938900), (25, 826232), (40, 516395), (41, 503800), (44, 469450), (50, 413116), (55, 375560), (82, 251900), (88, 234725), (100, 206558), (110, 187780), (164, 125950), (200, 103279), (205, 100760), (220, 93890), (229, 90200), (275, 75112), (328, 62975), (410, 50380), (440, 46945), (451, 45800), (458, 45100), (550, 37556), (820, 25190), (902, 22900), (916, 22550), (1025, 20152), (1100, 18778), (1145, 18040), (1640, 12595), (1804, 11450), (1832, 11275), (2050, 10076), (2200, 9389), (2255, 9160), (2290, 9020), (2519, 8200), (3608, 5725), (4100, 5038), (4510, 4580)]