1805493480

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{431}}^1\times {\mathrm{4987}}^1$

素因数の和:5439

約数の個数: 128

約数和(自身を含む): 6205870080

約数和(自身を除く): 4400376600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 431, 840, 862, 1293, 1724, 2155, 2586, 3017, 3448, 4310, 4987, 5172, 6034, 6465, 8620, 9051, 9974, 10344, 12068, 12930, 14961, 15085, 17240, 18102, 19948, 24136, 24935, 25860, 29922, 30170, 34909, 36204, 39896, 45255, 49870, 51720, 59844, 60340, 69818, 72408, 74805, 90510, 99740, 104727, 119688, 120680, 139636, 149610, 174545, 181020, 199480, 209454, 279272, 299220, 349090, 362040, 418908, 523635, 598440, 698180, 837816, 1047270, 1396360, 2094540, 2149397, 4189080, 4298794, 6448191, 8597588, 10746985, 12896382, 15045779, 17195176, 21493970, 25792764, 30091558, 32240955, 42987940, 45137337, 51585528, 60183116, 64481910, 75228895, 85975880, 90274674, 120366232, 128963820, 150457790, 180549348, 225686685, 257927640, 300915580, 361098696, 451373370, 601831160, 902746740, 1805493480]

約数ペア:

[(1, 1805493480), (2, 902746740), (3, 601831160), (4, 451373370), (5, 361098696), (6, 300915580), (7, 257927640), (8, 225686685), (10, 180549348), (12, 150457790), (14, 128963820), (15, 120366232), (20, 90274674), (21, 85975880), (24, 75228895), (28, 64481910), (30, 60183116), (35, 51585528), (40, 45137337), (42, 42987940), (56, 32240955), (60, 30091558), (70, 25792764), (84, 21493970), (105, 17195176), (120, 15045779), (140, 12896382), (168, 10746985), (210, 8597588), (280, 6448191), (420, 4298794), (431, 4189080), (840, 2149397), (862, 2094540), (1293, 1396360), (1724, 1047270), (2155, 837816), (2586, 698180), (3017, 598440), (3448, 523635), (4310, 418908), (4987, 362040), (5172, 349090), (6034, 299220), (6465, 279272), (8620, 209454), (9051, 199480), (9974, 181020), (10344, 174545), (12068, 149610), (12930, 139636), (14961, 120680), (15085, 119688), (17240, 104727), (18102, 99740), (19948, 90510), (24136, 74805), (24935, 72408), (25860, 69818), (29922, 60340), (30170, 59844), (34909, 51720), (36204, 49870), (39896, 45255)]