80956040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1$

素因数の和:255

約数の個数: 128

約数和(自身を含む): 214617600

約数和(自身を除く): 133661560

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 44, 55, 68, 79, 85, 88, 110, 136, 137, 158, 170, 187, 220, 274, 316, 340, 374, 395, 440, 548, 632, 680, 685, 748, 790, 869, 935, 1096, 1343, 1370, 1496, 1507, 1580, 1738, 1870, 2329, 2686, 2740, 3014, 3160, 3476, 3740, 4345, 4658, 5372, 5480, 6028, 6715, 6952, 7480, 7535, 8690, 9316, 10744, 10823, 11645, 12056, 13430, 14773, 15070, 17380, 18632, 21646, 23290, 25619, 26860, 29546, 30140, 34760, 43292, 46580, 51238, 53720, 54115, 59092, 60280, 73865, 86584, 93160, 102476, 108230, 118184, 119053, 128095, 147730, 183991, 204952, 216460, 238106, 256190, 295460, 367982, 432920, 476212, 512380, 590920, 595265, 735964, 919955, 952424, 1024760, 1190530, 1471928, 1839910, 2023901, 2381060, 3679820, 4047802, 4762120, 7359640, 8095604, 10119505, 16191208, 20239010, 40478020, 80956040]

約数ペア:

[(1, 80956040), (2, 40478020), (4, 20239010), (5, 16191208), (8, 10119505), (10, 8095604), (11, 7359640), (17, 4762120), (20, 4047802), (22, 3679820), (34, 2381060), (40, 2023901), (44, 1839910), (55, 1471928), (68, 1190530), (79, 1024760), (85, 952424), (88, 919955), (110, 735964), (136, 595265), (137, 590920), (158, 512380), (170, 476212), (187, 432920), (220, 367982), (274, 295460), (316, 256190), (340, 238106), (374, 216460), (395, 204952), (440, 183991), (548, 147730), (632, 128095), (680, 119053), (685, 118184), (748, 108230), (790, 102476), (869, 93160), (935, 86584), (1096, 73865), (1343, 60280), (1370, 59092), (1496, 54115), (1507, 53720), (1580, 51238), (1738, 46580), (1870, 43292), (2329, 34760), (2686, 30140), (2740, 29546), (3014, 26860), (3160, 25619), (3476, 23290), (3740, 21646), (4345, 18632), (4658, 17380), (5372, 15070), (5480, 14773), (6028, 13430), (6715, 12056), (6952, 11645), (7480, 10823), (7535, 10744), (8690, 9316)]