289920680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{263}}^1$

素因数の和:439

約数の個数: 128

約数和(自身を含む): 778567680

約数和(自身を除く): 488647000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 127, 140, 155, 217, 248, 254, 263, 280, 310, 434, 508, 526, 620, 635, 868, 889, 1016, 1052, 1085, 1240, 1270, 1315, 1736, 1778, 1841, 2104, 2170, 2540, 2630, 3556, 3682, 3937, 4340, 4445, 5080, 5260, 7112, 7364, 7874, 8153, 8680, 8890, 9205, 10520, 14728, 15748, 16306, 17780, 18410, 19685, 27559, 31496, 32612, 33401, 35560, 36820, 39370, 40765, 55118, 57071, 65224, 66802, 73640, 78740, 81530, 110236, 114142, 133604, 137795, 157480, 163060, 167005, 220472, 228284, 233807, 267208, 275590, 285355, 326120, 334010, 456568, 467614, 551180, 570710, 668020, 935228, 1035431, 1102360, 1141420, 1169035, 1336040, 1870456, 2070862, 2282840, 2338070, 4141724, 4676140, 5177155, 7248017, 8283448, 9352280, 10354310, 14496034, 20708620, 28992068, 36240085, 41417240, 57984136, 72480170, 144960340, 289920680]

約数ペア:

[(1, 289920680), (2, 144960340), (4, 72480170), (5, 57984136), (7, 41417240), (8, 36240085), (10, 28992068), (14, 20708620), (20, 14496034), (28, 10354310), (31, 9352280), (35, 8283448), (40, 7248017), (56, 5177155), (62, 4676140), (70, 4141724), (124, 2338070), (127, 2282840), (140, 2070862), (155, 1870456), (217, 1336040), (248, 1169035), (254, 1141420), (263, 1102360), (280, 1035431), (310, 935228), (434, 668020), (508, 570710), (526, 551180), (620, 467614), (635, 456568), (868, 334010), (889, 326120), (1016, 285355), (1052, 275590), (1085, 267208), (1240, 233807), (1270, 228284), (1315, 220472), (1736, 167005), (1778, 163060), (1841, 157480), (2104, 137795), (2170, 133604), (2540, 114142), (2630, 110236), (3556, 81530), (3682, 78740), (3937, 73640), (4340, 66802), (4445, 65224), (5080, 57071), (5260, 55118), (7112, 40765), (7364, 39370), (7874, 36820), (8153, 35560), (8680, 33401), (8890, 32612), (9205, 31496), (10520, 27559), (14728, 19685), (15748, 18410), (16306, 17780)]