320007996

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{127}}^1$

素因数の和:262

約数の個数: 240

約数和(自身を含む): 1061609472

約数和(自身を除く): 741601476

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 27, 28, 33, 36, 42, 44, 54, 63, 66, 77, 81, 84, 99, 101, 108, 126, 127, 132, 154, 162, 189, 198, 202, 231, 252, 254, 297, 303, 308, 324, 378, 381, 396, 404, 462, 508, 567, 594, 606, 693, 707, 756, 762, 889, 891, 909, 924, 1111, 1134, 1143, 1188, 1212, 1386, 1397, 1414, 1524, 1778, 1782, 1818, 2079, 2121, 2222, 2268, 2286, 2667, 2727, 2772, 2794, 2828, 3333, 3429, 3556, 3564, 3636, 4158, 4191, 4242, 4444, 4572, 5334, 5454, 5588, 6237, 6363, 6666, 6858, 7777, 8001, 8181, 8316, 8382, 8484, 9779, 9999, 10287, 10668, 10908, 12474, 12573, 12726, 12827, 13332, 13716, 15554, 16002, 16362, 16764, 19089, 19558, 19998, 20574, 23331, 24003, 24948, 25146, 25452, 25654, 29337, 29997, 31108, 32004, 32724, 37719, 38178, 38481, 39116, 39996, 41148, 46662, 48006, 50292, 51308, 57267, 58674, 59994, 69993, 72009, 75438, 76356, 76962, 88011, 89789, 89991, 93324, 96012, 113157, 114534, 115443, 117348, 119988, 139986, 141097, 144018, 150876, 153924, 176022, 179578, 179982, 209979, 226314, 229068, 230886, 264033, 269367, 279972, 282194, 288036, 346329, 352044, 359156, 359964, 419958, 423291, 452628, 461772, 528066, 538734, 564388, 629937, 692658, 792099, 808101, 839916, 846582, 987679, 1038987, 1056132, 1077468, 1259874, 1269873, 1385316, 1584198, 1616202, 1693164, 1975358, 2077974, 2424303, 2519748, 2539746, 2963037, 3168396, 3232404, 3809619, 3950716, 4155948, 4848606, 5079492, 5926074, 7272909, 7619238, 8889111, 9697212, 11428857, 11852148, 14545818, 15238476, 17778222, 22857714, 26667333, 29091636, 35556444, 45715428, 53334666, 80001999, 106669332, 160003998, 320007996]

約数ペア:

[(1, 320007996), (2, 160003998), (3, 106669332), (4, 80001999), (6, 53334666), (7, 45715428), (9, 35556444), (11, 29091636), (12, 26667333), (14, 22857714), (18, 17778222), (21, 15238476), (22, 14545818), (27, 11852148), (28, 11428857), (33, 9697212), (36, 8889111), (42, 7619238), (44, 7272909), (54, 5926074), (63, 5079492), (66, 4848606), (77, 4155948), (81, 3950716), (84, 3809619), (99, 3232404), (101, 3168396), (108, 2963037), (126, 2539746), (127, 2519748), (132, 2424303), (154, 2077974), (162, 1975358), (189, 1693164), (198, 1616202), (202, 1584198), (231, 1385316), (252, 1269873), (254, 1259874), (297, 1077468), (303, 1056132), (308, 1038987), (324, 987679), (378, 846582), (381, 839916), (396, 808101), (404, 792099), (462, 692658), (508, 629937), (567, 564388), (594, 538734), (606, 528066), (693, 461772), (707, 452628), (756, 423291), (762, 419958), (889, 359964), (891, 359156), (909, 352044), (924, 346329), (1111, 288036), (1134, 282194), (1143, 279972), (1188, 269367), (1212, 264033), (1386, 230886), (1397, 229068), (1414, 226314), (1524, 209979), (1778, 179982), (1782, 179578), (1818, 176022), (2079, 153924), (2121, 150876), (2222, 144018), (2268, 141097), (2286, 139986), (2667, 119988), (2727, 117348), (2772, 115443), (2794, 114534), (2828, 113157), (3333, 96012), (3429, 93324), (3556, 89991), (3564, 89789), (3636, 88011), (4158, 76962), (4191, 76356), (4242, 75438), (4444, 72009), (4572, 69993), (5334, 59994), (5454, 58674), (5588, 57267), (6237, 51308), (6363, 50292), (6666, 48006), (6858, 46662), (7777, 41148), (8001, 39996), (8181, 39116), (8316, 38481), (8382, 38178), (8484, 37719), (9779, 32724), (9999, 32004), (10287, 31108), (10668, 29997), (10908, 29337), (12474, 25654), (12573, 25452), (12726, 25146), (12827, 24948), (13332, 24003), (13716, 23331), (15554, 20574), (16002, 19998), (16362, 19558), (16764, 19089)]