208889171972

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{2237}}^1\times {\mathrm{20177}}^1$

素因数の和:22520

約数の個数: 48

約数和(自身を含む): 398296770480

約数和(自身を除く): 189407598508

約数列:

[1, 2, 4, 13, 26, 52, 89, 178, 356, 1157, 2237, 2314, 4474, 4628, 8948, 20177, 29081, 40354, 58162, 80708, 116324, 199093, 262301, 398186, 524602, 796372, 1049204, 1795753, 2588209, 3591506, 5176418, 7183012, 10352836, 23344789, 45135949, 46689578, 90271898, 93379156, 180543796, 586767337, 1173534674, 2347069348, 4017099461, 8034198922, 16068397844, 52222292993, 104444585986, 208889171972]

約数ペア:

[(1, 208889171972), (2, 104444585986), (4, 52222292993), (13, 16068397844), (26, 8034198922), (52, 4017099461), (89, 2347069348), (178, 1173534674), (356, 586767337), (1157, 180543796), (2237, 93379156), (2314, 90271898), (4474, 46689578), (4628, 45135949), (8948, 23344789), (20177, 10352836), (29081, 7183012), (40354, 5176418), (58162, 3591506), (80708, 2588209), (116324, 1795753), (199093, 1049204), (262301, 796372), (398186, 524602)]