1991513360

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{6091}}^1$

素因数の和:6232

約数の個数: 80

約数和(自身を含む): 4777200192

約数和(自身を除く): 2785686832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 67, 80, 122, 134, 244, 268, 305, 335, 488, 536, 610, 670, 976, 1072, 1220, 1340, 2440, 2680, 4087, 4880, 5360, 6091, 8174, 12182, 16348, 20435, 24364, 30455, 32696, 40870, 48728, 60910, 65392, 81740, 97456, 121820, 163480, 243640, 326960, 371551, 408097, 487280, 743102, 816194, 1486204, 1632388, 1857755, 2040485, 2972408, 3264776, 3715510, 4080970, 5944816, 6529552, 7431020, 8161940, 14862040, 16323880, 24893917, 29724080, 32647760, 49787834, 99575668, 124469585, 199151336, 248939170, 398302672, 497878340, 995756680, 1991513360]

約数ペア:

[(1, 1991513360), (2, 995756680), (4, 497878340), (5, 398302672), (8, 248939170), (10, 199151336), (16, 124469585), (20, 99575668), (40, 49787834), (61, 32647760), (67, 29724080), (80, 24893917), (122, 16323880), (134, 14862040), (244, 8161940), (268, 7431020), (305, 6529552), (335, 5944816), (488, 4080970), (536, 3715510), (610, 3264776), (670, 2972408), (976, 2040485), (1072, 1857755), (1220, 1632388), (1340, 1486204), (2440, 816194), (2680, 743102), (4087, 487280), (4880, 408097), (5360, 371551), (6091, 326960), (8174, 243640), (12182, 163480), (16348, 121820), (20435, 97456), (24364, 81740), (30455, 65392), (32696, 60910), (40870, 48728)]