639391554

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{10709}}^1$

素因数の和:10855

約数の個数: 48

約数和(自身を含む): 1443536640

約数和(自身を除く): 804145086

約数列:

[1, 2, 3, 6, 9, 18, 31, 62, 93, 107, 186, 214, 279, 321, 558, 642, 963, 1926, 3317, 6634, 9951, 10709, 19902, 21418, 29853, 32127, 59706, 64254, 96381, 192762, 331979, 663958, 995937, 1145863, 1991874, 2291726, 2987811, 3437589, 5975622, 6875178, 10312767, 20625534, 35521753, 71043506, 106565259, 213130518, 319695777, 639391554]

約数ペア:

[(1, 639391554), (2, 319695777), (3, 213130518), (6, 106565259), (9, 71043506), (18, 35521753), (31, 20625534), (62, 10312767), (93, 6875178), (107, 5975622), (186, 3437589), (214, 2987811), (279, 2291726), (321, 1991874), (558, 1145863), (642, 995937), (963, 663958), (1926, 331979), (3317, 192762), (6634, 96381), (9951, 64254), (10709, 59706), (19902, 32127), (21418, 29853)]