25559560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{199}}^1$

素因数の和:255

約数の個数: 96

約数和(自身を含む): 65880000

約数和(自身を除く): 40320440

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 169, 190, 199, 247, 260, 338, 380, 398, 494, 520, 676, 760, 796, 845, 988, 995, 1235, 1352, 1592, 1690, 1976, 1990, 2470, 2587, 3211, 3380, 3781, 3980, 4940, 5174, 6422, 6760, 7562, 7960, 9880, 10348, 12844, 12935, 15124, 16055, 18905, 20696, 25688, 25870, 30248, 32110, 33631, 37810, 49153, 51740, 64220, 67262, 75620, 98306, 103480, 128440, 134524, 151240, 168155, 196612, 245765, 269048, 336310, 393224, 491530, 638989, 672620, 983060, 1277978, 1345240, 1966120, 2555956, 3194945, 5111912, 6389890, 12779780, 25559560]

約数ペア:

[(1, 25559560), (2, 12779780), (4, 6389890), (5, 5111912), (8, 3194945), (10, 2555956), (13, 1966120), (19, 1345240), (20, 1277978), (26, 983060), (38, 672620), (40, 638989), (52, 491530), (65, 393224), (76, 336310), (95, 269048), (104, 245765), (130, 196612), (152, 168155), (169, 151240), (190, 134524), (199, 128440), (247, 103480), (260, 98306), (338, 75620), (380, 67262), (398, 64220), (494, 51740), (520, 49153), (676, 37810), (760, 33631), (796, 32110), (845, 30248), (988, 25870), (995, 25688), (1235, 20696), (1352, 18905), (1592, 16055), (1690, 15124), (1976, 12935), (1990, 12844), (2470, 10348), (2587, 9880), (3211, 7960), (3380, 7562), (3781, 6760), (3980, 6422), (4940, 5174)]