28079920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1877}}^1$

素因数の和:1918

約数の個数: 80

約数和(自身を含む): 75450528

約数和(自身を除く): 47370608

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 34, 40, 44, 55, 68, 80, 85, 88, 110, 136, 170, 176, 187, 220, 272, 340, 374, 440, 680, 748, 880, 935, 1360, 1496, 1870, 1877, 2992, 3740, 3754, 7480, 7508, 9385, 14960, 15016, 18770, 20647, 30032, 31909, 37540, 41294, 63818, 75080, 82588, 103235, 127636, 150160, 159545, 165176, 206470, 255272, 319090, 330352, 350999, 412940, 510544, 638180, 701998, 825880, 1276360, 1403996, 1651760, 1754995, 2552720, 2807992, 3509990, 5615984, 7019980, 14039960, 28079920]

約数ペア:

[(1, 28079920), (2, 14039960), (4, 7019980), (5, 5615984), (8, 3509990), (10, 2807992), (11, 2552720), (16, 1754995), (17, 1651760), (20, 1403996), (22, 1276360), (34, 825880), (40, 701998), (44, 638180), (55, 510544), (68, 412940), (80, 350999), (85, 330352), (88, 319090), (110, 255272), (136, 206470), (170, 165176), (176, 159545), (187, 150160), (220, 127636), (272, 103235), (340, 82588), (374, 75080), (440, 63818), (680, 41294), (748, 37540), (880, 31909), (935, 30032), (1360, 20647), (1496, 18770), (1870, 15016), (1877, 14960), (2992, 9385), (3740, 7508), (3754, 7480)]