20973920

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{701}}^1$

素因数の和:744

約数の個数: 96

約数和(自身を含む): 57316896

約数和(自身を除く): 36342976

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 32, 34, 40, 44, 55, 68, 80, 85, 88, 110, 136, 160, 170, 176, 187, 220, 272, 340, 352, 374, 440, 544, 680, 701, 748, 880, 935, 1360, 1402, 1496, 1760, 1870, 2720, 2804, 2992, 3505, 3740, 5608, 5984, 7010, 7480, 7711, 11216, 11917, 14020, 14960, 15422, 22432, 23834, 28040, 29920, 30844, 38555, 47668, 56080, 59585, 61688, 77110, 95336, 112160, 119170, 123376, 131087, 154220, 190672, 238340, 246752, 262174, 308440, 381344, 476680, 524348, 616880, 655435, 953360, 1048696, 1233760, 1310870, 1906720, 2097392, 2621740, 4194784, 5243480, 10486960, 20973920]

約数ペア:

[(1, 20973920), (2, 10486960), (4, 5243480), (5, 4194784), (8, 2621740), (10, 2097392), (11, 1906720), (16, 1310870), (17, 1233760), (20, 1048696), (22, 953360), (32, 655435), (34, 616880), (40, 524348), (44, 476680), (55, 381344), (68, 308440), (80, 262174), (85, 246752), (88, 238340), (110, 190672), (136, 154220), (160, 131087), (170, 123376), (176, 119170), (187, 112160), (220, 95336), (272, 77110), (340, 61688), (352, 59585), (374, 56080), (440, 47668), (544, 38555), (680, 30844), (701, 29920), (748, 28040), (880, 23834), (935, 22432), (1360, 15422), (1402, 14960), (1496, 14020), (1760, 11917), (1870, 11216), (2720, 7711), (2804, 7480), (2992, 7010), (3505, 5984), (3740, 5608)]