687000689000

素因数分解:

$2^3\times 5^3\times {\mathrm{19}}^2\times {\mathrm{139}}^1\times {\mathrm{13691}}^1$

素因数の和:13889

約数の個数: 192

約数和(自身を含む): 1708975195200

約数和(自身を除く): 1021974506200

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 125, 139, 152, 190, 200, 250, 278, 361, 380, 475, 500, 556, 695, 722, 760, 950, 1000, 1112, 1390, 1444, 1805, 1900, 2375, 2641, 2780, 2888, 3475, 3610, 3800, 4750, 5282, 5560, 6950, 7220, 9025, 9500, 10564, 13205, 13691, 13900, 14440, 17375, 18050, 19000, 21128, 26410, 27382, 27800, 34750, 36100, 45125, 50179, 52820, 54764, 66025, 68455, 69500, 72200, 90250, 100358, 105640, 109528, 132050, 136910, 139000, 180500, 200716, 250895, 260129, 264100, 273820, 330125, 342275, 361000, 401432, 501790, 520258, 528200, 547640, 660250, 684550, 1003580, 1040516, 1254475, 1300645, 1320500, 1369100, 1711375, 1903049, 2007160, 2081032, 2508950, 2601290, 2641000, 2738200, 3422750, 3806098, 4942451, 5017900, 5202580, 6272375, 6503225, 6845500, 7612196, 9515245, 9884902, 10035800, 10405160, 12544750, 13006450, 13691000, 15224392, 19030490, 19769804, 24712255, 25089500, 26012900, 32516125, 36157931, 38060980, 39539608, 47576225, 49424510, 50179000, 52025800, 65032250, 72315862, 76121960, 95152450, 98849020, 123561275, 130064500, 144631724, 180789655, 190304900, 197698040, 237881125, 247122550, 260129000, 289263448, 361579310, 380609800, 475762250, 494245100, 617806375, 687000689, 723158620, 903948275, 951524500, 988490200, 1235612750, 1374001378, 1446317240, 1807896550, 1903049000, 2471225500, 2748002756, 3435003445, 3615793100, 4519741375, 4942451000, 5496005512, 6870006890, 7231586200, 9039482750, 13740013780, 17175017225, 18078965500, 27480027560, 34350034450, 36157931000, 68700068900, 85875086125, 137400137800, 171750172250, 343500344500, 687000689000]

約数ペア:

[(1, 687000689000), (2, 343500344500), (4, 171750172250), (5, 137400137800), (8, 85875086125), (10, 68700068900), (19, 36157931000), (20, 34350034450), (25, 27480027560), (38, 18078965500), (40, 17175017225), (50, 13740013780), (76, 9039482750), (95, 7231586200), (100, 6870006890), (125, 5496005512), (139, 4942451000), (152, 4519741375), (190, 3615793100), (200, 3435003445), (250, 2748002756), (278, 2471225500), (361, 1903049000), (380, 1807896550), (475, 1446317240), (500, 1374001378), (556, 1235612750), (695, 988490200), (722, 951524500), (760, 903948275), (950, 723158620), (1000, 687000689), (1112, 617806375), (1390, 494245100), (1444, 475762250), (1805, 380609800), (1900, 361579310), (2375, 289263448), (2641, 260129000), (2780, 247122550), (2888, 237881125), (3475, 197698040), (3610, 190304900), (3800, 180789655), (4750, 144631724), (5282, 130064500), (5560, 123561275), (6950, 98849020), (7220, 95152450), (9025, 76121960), (9500, 72315862), (10564, 65032250), (13205, 52025800), (13691, 50179000), (13900, 49424510), (14440, 47576225), (17375, 39539608), (18050, 38060980), (19000, 36157931), (21128, 32516125), (26410, 26012900), (27382, 25089500), (27800, 24712255), (34750, 19769804), (36100, 19030490), (45125, 15224392), (50179, 13691000), (52820, 13006450), (54764, 12544750), (66025, 10405160), (68455, 10035800), (69500, 9884902), (72200, 9515245), (90250, 7612196), (100358, 6845500), (105640, 6503225), (109528, 6272375), (132050, 5202580), (136910, 5017900), (139000, 4942451), (180500, 3806098), (200716, 3422750), (250895, 2738200), (260129, 2641000), (264100, 2601290), (273820, 2508950), (330125, 2081032), (342275, 2007160), (361000, 1903049), (401432, 1711375), (501790, 1369100), (520258, 1320500), (528200, 1300645), (547640, 1254475), (660250, 1040516), (684550, 1003580)]