87721480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1499}}^1$

素因数の和:1547

約数の個数: 128

約数和(自身を含む): 259200000

約数和(自身を除く): 171478520

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 19, 20, 22, 28, 35, 38, 40, 44, 55, 56, 70, 76, 77, 88, 95, 110, 133, 140, 152, 154, 190, 209, 220, 266, 280, 308, 380, 385, 418, 440, 532, 616, 665, 760, 770, 836, 1045, 1064, 1330, 1463, 1499, 1540, 1672, 2090, 2660, 2926, 2998, 3080, 4180, 5320, 5852, 5996, 7315, 7495, 8360, 10493, 11704, 11992, 14630, 14990, 16489, 20986, 28481, 29260, 29980, 32978, 41972, 52465, 56962, 58520, 59960, 65956, 82445, 83944, 104930, 113924, 115423, 131912, 142405, 164890, 199367, 209860, 227848, 230846, 284810, 313291, 329780, 398734, 419720, 461692, 569620, 577115, 626582, 659560, 797468, 923384, 996835, 1139240, 1154230, 1253164, 1566455, 1594936, 1993670, 2193037, 2308460, 2506328, 3132910, 3987340, 4386074, 4616920, 6265820, 7974680, 8772148, 10965185, 12531640, 17544296, 21930370, 43860740, 87721480]

約数ペア:

[(1, 87721480), (2, 43860740), (4, 21930370), (5, 17544296), (7, 12531640), (8, 10965185), (10, 8772148), (11, 7974680), (14, 6265820), (19, 4616920), (20, 4386074), (22, 3987340), (28, 3132910), (35, 2506328), (38, 2308460), (40, 2193037), (44, 1993670), (55, 1594936), (56, 1566455), (70, 1253164), (76, 1154230), (77, 1139240), (88, 996835), (95, 923384), (110, 797468), (133, 659560), (140, 626582), (152, 577115), (154, 569620), (190, 461692), (209, 419720), (220, 398734), (266, 329780), (280, 313291), (308, 284810), (380, 230846), (385, 227848), (418, 209860), (440, 199367), (532, 164890), (616, 142405), (665, 131912), (760, 115423), (770, 113924), (836, 104930), (1045, 83944), (1064, 82445), (1330, 65956), (1463, 59960), (1499, 58520), (1540, 56962), (1672, 52465), (2090, 41972), (2660, 32978), (2926, 29980), (2998, 29260), (3080, 28481), (4180, 20986), (5320, 16489), (5852, 14990), (5996, 14630), (7315, 11992), (7495, 11704), (8360, 10493)]