1288290420

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{21493}}^1$

素因数の和:21551

約数の個数: 120

約数和(自身を含む): 4150835304

約数和(自身を除く): 2862544884

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 37, 45, 54, 60, 74, 81, 90, 108, 111, 135, 148, 162, 180, 185, 222, 270, 324, 333, 370, 405, 444, 540, 555, 666, 740, 810, 999, 1110, 1332, 1620, 1665, 1998, 2220, 2997, 3330, 3996, 4995, 5994, 6660, 9990, 11988, 14985, 19980, 21493, 29970, 42986, 59940, 64479, 85972, 107465, 128958, 193437, 214930, 257916, 322395, 386874, 429860, 580311, 644790, 773748, 795241, 967185, 1160622, 1289580, 1590482, 1740933, 1934370, 2321244, 2385723, 2901555, 3180964, 3481866, 3868740, 3976205, 4771446, 5803110, 6963732, 7157169, 7952410, 8704665, 9542892, 11606220, 11928615, 14314338, 15904820, 17409330, 21471507, 23857230, 28628676, 34818660, 35785845, 42943014, 47714460, 64414521, 71571690, 85886028, 107357535, 128829042, 143143380, 214715070, 257658084, 322072605, 429430140, 644145210, 1288290420]

約数ペア:

[(1, 1288290420), (2, 644145210), (3, 429430140), (4, 322072605), (5, 257658084), (6, 214715070), (9, 143143380), (10, 128829042), (12, 107357535), (15, 85886028), (18, 71571690), (20, 64414521), (27, 47714460), (30, 42943014), (36, 35785845), (37, 34818660), (45, 28628676), (54, 23857230), (60, 21471507), (74, 17409330), (81, 15904820), (90, 14314338), (108, 11928615), (111, 11606220), (135, 9542892), (148, 8704665), (162, 7952410), (180, 7157169), (185, 6963732), (222, 5803110), (270, 4771446), (324, 3976205), (333, 3868740), (370, 3481866), (405, 3180964), (444, 2901555), (540, 2385723), (555, 2321244), (666, 1934370), (740, 1740933), (810, 1590482), (999, 1289580), (1110, 1160622), (1332, 967185), (1620, 795241), (1665, 773748), (1998, 644790), (2220, 580311), (2997, 429860), (3330, 386874), (3996, 322395), (4995, 257916), (5994, 214930), (6660, 193437), (9990, 128958), (11988, 107465), (14985, 85972), (19980, 64479), (21493, 59940), (29970, 42986)]