1661371400

素因数分解:

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

素因数の和:273

約数の個数: 192

約数和(自身を含む): 4426800000

約数和(自身を除く): 2765428600

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 25, 26, 38, 40, 50, 52, 65, 76, 95, 100, 104, 130, 152, 169, 190, 199, 200, 247, 260, 325, 338, 380, 398, 475, 494, 520, 650, 676, 760, 796, 845, 950, 988, 995, 1235, 1300, 1352, 1592, 1690, 1900, 1976, 1990, 2197, 2470, 2587, 2600, 3211, 3380, 3781, 3800, 3980, 4225, 4394, 4940, 4975, 5174, 6175, 6422, 6760, 7562, 7960, 8450, 8788, 9880, 9950, 10348, 10985, 12350, 12844, 12935, 15124, 16055, 16900, 17576, 18905, 19900, 20696, 21970, 24700, 25688, 25870, 30248, 32110, 33631, 33800, 37810, 39800, 41743, 43940, 49153, 49400, 51740, 54925, 64220, 64675, 67262, 75620, 80275, 83486, 87880, 94525, 98306, 103480, 109850, 128440, 129350, 134524, 151240, 160550, 166972, 168155, 189050, 196612, 208715, 219700, 245765, 258700, 269048, 321100, 333944, 336310, 378100, 393224, 417430, 437203, 439400, 491530, 517400, 638989, 642200, 672620, 756200, 834860, 840775, 874406, 983060, 1043575, 1228825, 1277978, 1345240, 1669720, 1681550, 1748812, 1966120, 2087150, 2186015, 2457650, 2555956, 3194945, 3363100, 3497624, 4174300, 4372030, 4915300, 5111912, 6389890, 6726200, 8306857, 8348600, 8744060, 9830600, 10930075, 12779780, 15974725, 16613714, 17488120, 21860150, 25559560, 31949450, 33227428, 41534285, 43720300, 63898900, 66454856, 83068570, 87440600, 127797800, 166137140, 207671425, 332274280, 415342850, 830685700, 1661371400]

約数ペア:

[(1, 1661371400), (2, 830685700), (4, 415342850), (5, 332274280), (8, 207671425), (10, 166137140), (13, 127797800), (19, 87440600), (20, 83068570), (25, 66454856), (26, 63898900), (38, 43720300), (40, 41534285), (50, 33227428), (52, 31949450), (65, 25559560), (76, 21860150), (95, 17488120), (100, 16613714), (104, 15974725), (130, 12779780), (152, 10930075), (169, 9830600), (190, 8744060), (199, 8348600), (200, 8306857), (247, 6726200), (260, 6389890), (325, 5111912), (338, 4915300), (380, 4372030), (398, 4174300), (475, 3497624), (494, 3363100), (520, 3194945), (650, 2555956), (676, 2457650), (760, 2186015), (796, 2087150), (845, 1966120), (950, 1748812), (988, 1681550), (995, 1669720), (1235, 1345240), (1300, 1277978), (1352, 1228825), (1592, 1043575), (1690, 983060), (1900, 874406), (1976, 840775), (1990, 834860), (2197, 756200), (2470, 672620), (2587, 642200), (2600, 638989), (3211, 517400), (3380, 491530), (3781, 439400), (3800, 437203), (3980, 417430), (4225, 393224), (4394, 378100), (4940, 336310), (4975, 333944), (5174, 321100), (6175, 269048), (6422, 258700), (6760, 245765), (7562, 219700), (7960, 208715), (8450, 196612), (8788, 189050), (9880, 168155), (9950, 166972), (10348, 160550), (10985, 151240), (12350, 134524), (12844, 129350), (12935, 128440), (15124, 109850), (16055, 103480), (16900, 98306), (17576, 94525), (18905, 87880), (19900, 83486), (20696, 80275), (21970, 75620), (24700, 67262), (25688, 64675), (25870, 64220), (30248, 54925), (32110, 51740), (33631, 49400), (33800, 49153), (37810, 43940), (39800, 41743)]