139999720

素因数分解:

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

素因数の和:303

約数の個数: 96

約数和(自身を含む): 374561280

約数和(自身を除く): 234561560

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, 280, 310, 434, 508, 620, 635, 868, 889, 1016, 1085, 1240, 1270, 1736, 1778, 2170, 2540, 3556, 3937, 4340, 4445, 5080, 7112, 7874, 8680, 8890, 15748, 16129, 17780, 19685, 27559, 31496, 32258, 35560, 39370, 55118, 64516, 78740, 80645, 110236, 112903, 129032, 137795, 157480, 161290, 220472, 225806, 275590, 322580, 451612, 499999, 551180, 564515, 645160, 903224, 999998, 1102360, 1129030, 1999996, 2258060, 2499995, 3499993, 3999992, 4516120, 4999990, 6999986, 9999980, 13999972, 17499965, 19999960, 27999944, 34999930, 69999860, 139999720]

約数ペア:

[(1, 139999720), (2, 69999860), (4, 34999930), (5, 27999944), (7, 19999960), (8, 17499965), (10, 13999972), (14, 9999980), (20, 6999986), (28, 4999990), (31, 4516120), (35, 3999992), (40, 3499993), (56, 2499995), (62, 2258060), (70, 1999996), (124, 1129030), (127, 1102360), (140, 999998), (155, 903224), (217, 645160), (248, 564515), (254, 551180), (280, 499999), (310, 451612), (434, 322580), (508, 275590), (620, 225806), (635, 220472), (868, 161290), (889, 157480), (1016, 137795), (1085, 129032), (1240, 112903), (1270, 110236), (1736, 80645), (1778, 78740), (2170, 64516), (2540, 55118), (3556, 39370), (3937, 35560), (4340, 32258), (4445, 31496), (5080, 27559), (7112, 19685), (7874, 17780), (8680, 16129), (8890, 15748)]