80890740

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1493}}^1$

素因数の和:1558

約数の個数: 144

約数和(自身を含む): 287134848

約数和(自身を除く): 206244108

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 43, 45, 60, 63, 70, 84, 86, 90, 105, 126, 129, 140, 172, 180, 210, 215, 252, 258, 301, 315, 387, 420, 430, 516, 602, 630, 645, 774, 860, 903, 1204, 1260, 1290, 1493, 1505, 1548, 1806, 1935, 2580, 2709, 2986, 3010, 3612, 3870, 4479, 4515, 5418, 5972, 6020, 7465, 7740, 8958, 9030, 10451, 10836, 13437, 13545, 14930, 17916, 18060, 20902, 22395, 26874, 27090, 29860, 31353, 41804, 44790, 52255, 53748, 54180, 62706, 64199, 67185, 89580, 94059, 104510, 125412, 128398, 134370, 156765, 188118, 192597, 209020, 256796, 268740, 313530, 320995, 376236, 385194, 449393, 470295, 577791, 627060, 641990, 770388, 898786, 940590, 962985, 1155582, 1283980, 1348179, 1797572, 1881180, 1925970, 2246965, 2311164, 2696358, 2888955, 3851940, 4044537, 4493930, 5392716, 5777910, 6740895, 8089074, 8987860, 11555820, 13481790, 16178148, 20222685, 26963580, 40445370, 80890740]

約数ペア:

[(1, 80890740), (2, 40445370), (3, 26963580), (4, 20222685), (5, 16178148), (6, 13481790), (7, 11555820), (9, 8987860), (10, 8089074), (12, 6740895), (14, 5777910), (15, 5392716), (18, 4493930), (20, 4044537), (21, 3851940), (28, 2888955), (30, 2696358), (35, 2311164), (36, 2246965), (42, 1925970), (43, 1881180), (45, 1797572), (60, 1348179), (63, 1283980), (70, 1155582), (84, 962985), (86, 940590), (90, 898786), (105, 770388), (126, 641990), (129, 627060), (140, 577791), (172, 470295), (180, 449393), (210, 385194), (215, 376236), (252, 320995), (258, 313530), (301, 268740), (315, 256796), (387, 209020), (420, 192597), (430, 188118), (516, 156765), (602, 134370), (630, 128398), (645, 125412), (774, 104510), (860, 94059), (903, 89580), (1204, 67185), (1260, 64199), (1290, 62706), (1493, 54180), (1505, 53748), (1548, 52255), (1806, 44790), (1935, 41804), (2580, 31353), (2709, 29860), (2986, 27090), (3010, 26874), (3612, 22395), (3870, 20902), (4479, 18060), (4515, 17916), (5418, 14930), (5972, 13545), (6020, 13437), (7465, 10836), (7740, 10451), (8958, 9030)]