686897820

素因数分解:

$2^2\times 3^5\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{331}}^1$

素因数の和:423

約数の個数: 288

約数和(自身を含む): 2517505536

約数和(自身を除く): 1830607716

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 61, 63, 70, 81, 84, 90, 105, 108, 122, 126, 135, 140, 162, 180, 183, 189, 210, 243, 244, 252, 270, 305, 315, 324, 331, 366, 378, 405, 420, 427, 486, 540, 549, 567, 610, 630, 662, 732, 756, 810, 854, 915, 945, 972, 993, 1098, 1134, 1215, 1220, 1260, 1281, 1324, 1620, 1647, 1655, 1701, 1708, 1830, 1890, 1986, 2135, 2196, 2268, 2317, 2430, 2562, 2745, 2835, 2979, 3294, 3310, 3402, 3660, 3780, 3843, 3972, 4270, 4634, 4860, 4941, 4965, 5124, 5490, 5670, 5958, 6405, 6588, 6620, 6804, 6951, 7686, 8235, 8505, 8540, 8937, 9268, 9882, 9930, 10980, 11340, 11529, 11585, 11916, 12810, 13902, 14823, 14895, 15372, 16470, 17010, 17874, 19215, 19764, 19860, 20191, 20853, 23058, 23170, 24705, 25620, 26811, 27804, 29646, 29790, 32940, 34020, 34587, 34755, 35748, 38430, 40382, 41706, 44685, 46116, 46340, 49410, 53622, 57645, 59292, 59580, 60573, 62559, 69174, 69510, 74115, 76860, 80433, 80764, 83412, 89370, 98820, 100955, 103761, 104265, 107244, 115290, 121146, 125118, 134055, 138348, 139020, 141337, 148230, 160866, 172935, 178740, 181719, 187677, 201910, 207522, 208530, 230580, 242292, 250236, 268110, 282674, 296460, 302865, 312795, 321732, 345870, 363438, 375354, 402165, 403820, 415044, 417060, 424011, 518805, 536220, 545157, 563031, 565348, 605730, 625590, 691740, 706685, 726876, 750708, 804330, 848022, 908595, 938385, 1037610, 1090314, 1126062, 1211460, 1251180, 1272033, 1413370, 1608660, 1635471, 1696044, 1817190, 1876770, 2075220, 2120055, 2180628, 2252124, 2544066, 2725785, 2815155, 2826740, 3270942, 3634380, 3753540, 3816099, 4240110, 4906413, 5088132, 5451570, 5630310, 6360165, 6541884, 7632198, 8177355, 8480220, 9812826, 10903140, 11260620, 11448297, 12720330, 15264396, 16354710, 19080495, 19625652, 22896594, 24532065, 25440660, 32709420, 34344891, 38160990, 45793188, 49064130, 57241485, 68689782, 76321980, 98128260, 114482970, 137379564, 171724455, 228965940, 343448910, 686897820]

約数ペア:

[(1, 686897820), (2, 343448910), (3, 228965940), (4, 171724455), (5, 137379564), (6, 114482970), (7, 98128260), (9, 76321980), (10, 68689782), (12, 57241485), (14, 49064130), (15, 45793188), (18, 38160990), (20, 34344891), (21, 32709420), (27, 25440660), (28, 24532065), (30, 22896594), (35, 19625652), (36, 19080495), (42, 16354710), (45, 15264396), (54, 12720330), (60, 11448297), (61, 11260620), (63, 10903140), (70, 9812826), (81, 8480220), (84, 8177355), (90, 7632198), (105, 6541884), (108, 6360165), (122, 5630310), (126, 5451570), (135, 5088132), (140, 4906413), (162, 4240110), (180, 3816099), (183, 3753540), (189, 3634380), (210, 3270942), (243, 2826740), (244, 2815155), (252, 2725785), (270, 2544066), (305, 2252124), (315, 2180628), (324, 2120055), (331, 2075220), (366, 1876770), (378, 1817190), (405, 1696044), (420, 1635471), (427, 1608660), (486, 1413370), (540, 1272033), (549, 1251180), (567, 1211460), (610, 1126062), (630, 1090314), (662, 1037610), (732, 938385), (756, 908595), (810, 848022), (854, 804330), (915, 750708), (945, 726876), (972, 706685), (993, 691740), (1098, 625590), (1134, 605730), (1215, 565348), (1220, 563031), (1260, 545157), (1281, 536220), (1324, 518805), (1620, 424011), (1647, 417060), (1655, 415044), (1701, 403820), (1708, 402165), (1830, 375354), (1890, 363438), (1986, 345870), (2135, 321732), (2196, 312795), (2268, 302865), (2317, 296460), (2430, 282674), (2562, 268110), (2745, 250236), (2835, 242292), (2979, 230580), (3294, 208530), (3310, 207522), (3402, 201910), (3660, 187677), (3780, 181719), (3843, 178740), (3972, 172935), (4270, 160866), (4634, 148230), (4860, 141337), (4941, 139020), (4965, 138348), (5124, 134055), (5490, 125118), (5670, 121146), (5958, 115290), (6405, 107244), (6588, 104265), (6620, 103761), (6804, 100955), (6951, 98820), (7686, 89370), (8235, 83412), (8505, 80764), (8540, 80433), (8937, 76860), (9268, 74115), (9882, 69510), (9930, 69174), (10980, 62559), (11340, 60573), (11529, 59580), (11585, 59292), (11916, 57645), (12810, 53622), (13902, 49410), (14823, 46340), (14895, 46116), (15372, 44685), (16470, 41706), (17010, 40382), (17874, 38430), (19215, 35748), (19764, 34755), (19860, 34587), (20191, 34020), (20853, 32940), (23058, 29790), (23170, 29646), (24705, 27804), (25620, 26811)]