161381520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{131}}^1$

素因数の和:238

約数の個数: 240

約数和(自身を含む): 574516800

約数和(自身を除く): 413135280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 29, 30, 36, 40, 45, 48, 58, 59, 60, 72, 80, 87, 90, 116, 118, 120, 131, 144, 145, 174, 177, 180, 232, 236, 240, 261, 262, 290, 295, 348, 354, 360, 393, 435, 464, 472, 522, 524, 531, 580, 590, 655, 696, 708, 720, 786, 870, 885, 944, 1044, 1048, 1062, 1160, 1179, 1180, 1305, 1310, 1392, 1416, 1572, 1711, 1740, 1770, 1965, 2088, 2096, 2124, 2320, 2358, 2360, 2610, 2620, 2655, 2832, 3144, 3422, 3480, 3540, 3799, 3930, 4176, 4248, 4716, 4720, 5133, 5220, 5240, 5310, 5895, 6288, 6844, 6960, 7080, 7598, 7729, 7860, 8496, 8555, 9432, 10266, 10440, 10480, 10620, 11397, 11790, 13688, 14160, 15196, 15399, 15458, 15720, 17110, 18864, 18995, 20532, 20880, 21240, 22794, 23187, 23580, 25665, 27376, 30392, 30798, 30916, 31440, 34191, 34220, 37990, 38645, 41064, 42480, 45588, 46374, 47160, 51330, 56985, 60784, 61596, 61832, 68382, 68440, 69561, 75980, 76995, 77290, 82128, 91176, 92748, 94320, 102660, 113970, 115935, 123192, 123664, 136764, 136880, 139122, 151960, 153990, 154580, 170955, 182352, 185496, 205320, 224141, 227940, 231870, 246384, 273528, 278244, 303920, 307980, 309160, 341910, 347805, 370992, 410640, 448282, 455880, 463740, 547056, 556488, 615960, 618320, 672423, 683820, 695610, 896564, 911760, 927480, 1112976, 1120705, 1231920, 1344846, 1367640, 1391220, 1793128, 1854960, 2017269, 2241410, 2689692, 2735280, 2782440, 3362115, 3586256, 4034538, 4482820, 5379384, 5564880, 6724230, 8069076, 8965640, 10086345, 10758768, 13448460, 16138152, 17931280, 20172690, 26896920, 32276304, 40345380, 53793840, 80690760, 161381520]

約数ペア:

[(1, 161381520), (2, 80690760), (3, 53793840), (4, 40345380), (5, 32276304), (6, 26896920), (8, 20172690), (9, 17931280), (10, 16138152), (12, 13448460), (15, 10758768), (16, 10086345), (18, 8965640), (20, 8069076), (24, 6724230), (29, 5564880), (30, 5379384), (36, 4482820), (40, 4034538), (45, 3586256), (48, 3362115), (58, 2782440), (59, 2735280), (60, 2689692), (72, 2241410), (80, 2017269), (87, 1854960), (90, 1793128), (116, 1391220), (118, 1367640), (120, 1344846), (131, 1231920), (144, 1120705), (145, 1112976), (174, 927480), (177, 911760), (180, 896564), (232, 695610), (236, 683820), (240, 672423), (261, 618320), (262, 615960), (290, 556488), (295, 547056), (348, 463740), (354, 455880), (360, 448282), (393, 410640), (435, 370992), (464, 347805), (472, 341910), (522, 309160), (524, 307980), (531, 303920), (580, 278244), (590, 273528), (655, 246384), (696, 231870), (708, 227940), (720, 224141), (786, 205320), (870, 185496), (885, 182352), (944, 170955), (1044, 154580), (1048, 153990), (1062, 151960), (1160, 139122), (1179, 136880), (1180, 136764), (1305, 123664), (1310, 123192), (1392, 115935), (1416, 113970), (1572, 102660), (1711, 94320), (1740, 92748), (1770, 91176), (1965, 82128), (2088, 77290), (2096, 76995), (2124, 75980), (2320, 69561), (2358, 68440), (2360, 68382), (2610, 61832), (2620, 61596), (2655, 60784), (2832, 56985), (3144, 51330), (3422, 47160), (3480, 46374), (3540, 45588), (3799, 42480), (3930, 41064), (4176, 38645), (4248, 37990), (4716, 34220), (4720, 34191), (5133, 31440), (5220, 30916), (5240, 30798), (5310, 30392), (5895, 27376), (6288, 25665), (6844, 23580), (6960, 23187), (7080, 22794), (7598, 21240), (7729, 20880), (7860, 20532), (8496, 18995), (8555, 18864), (9432, 17110), (10266, 15720), (10440, 15458), (10480, 15399), (10620, 15196), (11397, 14160), (11790, 13688)]