21077948780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{43627}}^1$

素因数の和:43696

約数の個数: 144

約数和(自身を含む): 56400533280

約数和(自身を除く): 35322584500

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 29, 34, 35, 49, 58, 68, 70, 85, 98, 116, 119, 140, 145, 170, 196, 203, 238, 245, 290, 340, 406, 476, 490, 493, 580, 595, 812, 833, 980, 986, 1015, 1190, 1421, 1666, 1972, 2030, 2380, 2465, 2842, 3332, 3451, 4060, 4165, 4930, 5684, 6902, 7105, 8330, 9860, 13804, 14210, 16660, 17255, 24157, 28420, 34510, 43627, 48314, 69020, 87254, 96628, 120785, 174508, 218135, 241570, 305389, 436270, 483140, 610778, 741659, 872540, 1221556, 1265183, 1483318, 1526945, 2137723, 2530366, 2966636, 3053890, 3708295, 4275446, 5060732, 5191613, 6107780, 6325915, 7416590, 8550892, 8856281, 10383226, 10688615, 12651830, 14833180, 17712562, 20766452, 21377230, 21508111, 25303660, 25958065, 35425124, 36341291, 42754460, 43016222, 44281405, 51916130, 61993967, 72682582, 86032444, 88562810, 103832260, 107540555, 123987934, 145365164, 150556777, 177125620, 181706455, 215081110, 247975868, 301113554, 309969835, 363412910, 430162220, 602227108, 619939670, 726825820, 752783885, 1053897439, 1239879340, 1505567770, 2107794878, 3011135540, 4215589756, 5269487195, 10538974390, 21077948780]

約数ペア:

[(1, 21077948780), (2, 10538974390), (4, 5269487195), (5, 4215589756), (7, 3011135540), (10, 2107794878), (14, 1505567770), (17, 1239879340), (20, 1053897439), (28, 752783885), (29, 726825820), (34, 619939670), (35, 602227108), (49, 430162220), (58, 363412910), (68, 309969835), (70, 301113554), (85, 247975868), (98, 215081110), (116, 181706455), (119, 177125620), (140, 150556777), (145, 145365164), (170, 123987934), (196, 107540555), (203, 103832260), (238, 88562810), (245, 86032444), (290, 72682582), (340, 61993967), (406, 51916130), (476, 44281405), (490, 43016222), (493, 42754460), (580, 36341291), (595, 35425124), (812, 25958065), (833, 25303660), (980, 21508111), (986, 21377230), (1015, 20766452), (1190, 17712562), (1421, 14833180), (1666, 12651830), (1972, 10688615), (2030, 10383226), (2380, 8856281), (2465, 8550892), (2842, 7416590), (3332, 6325915), (3451, 6107780), (4060, 5191613), (4165, 5060732), (4930, 4275446), (5684, 3708295), (6902, 3053890), (7105, 2966636), (8330, 2530366), (9860, 2137723), (13804, 1526945), (14210, 1483318), (16660, 1265183), (17255, 1221556), (24157, 872540), (28420, 741659), (34510, 610778), (43627, 483140), (48314, 436270), (69020, 305389), (87254, 241570), (96628, 218135), (120785, 174508)]