2021081270

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{109}}^1$

素因数の和:310

約数の個数: 128

約数和(自身を含む): 4215214080

約数和(自身を除く): 2194132810

約数列:

[1, 2, 5, 10, 13, 26, 31, 43, 62, 65, 86, 107, 109, 130, 155, 214, 215, 218, 310, 403, 430, 535, 545, 559, 806, 1070, 1090, 1118, 1333, 1391, 1417, 2015, 2666, 2782, 2795, 2834, 3317, 3379, 4030, 4601, 4687, 5590, 6634, 6665, 6758, 6955, 7085, 9202, 9374, 11663, 13330, 13910, 14170, 16585, 16895, 17329, 23005, 23326, 23435, 33170, 33790, 34658, 43121, 43927, 46010, 46870, 58315, 59813, 60931, 86242, 86645, 87854, 116630, 119626, 121862, 142631, 145297, 151619, 173290, 215605, 219635, 285262, 290594, 299065, 303238, 304655, 361553, 431210, 439270, 501509, 598130, 609310, 713155, 723106, 726485, 758095, 1003018, 1426310, 1452970, 1516190, 1807765, 1854203, 1888861, 2507545, 3615530, 3708406, 3777722, 4700189, 5015090, 6519617, 9271015, 9400378, 9444305, 13039234, 15546779, 18542030, 18888610, 23500945, 31093558, 32598085, 47001890, 65196170, 77733895, 155467790, 202108127, 404216254, 1010540635, 2021081270]

約数ペア:

[(1, 2021081270), (2, 1010540635), (5, 404216254), (10, 202108127), (13, 155467790), (26, 77733895), (31, 65196170), (43, 47001890), (62, 32598085), (65, 31093558), (86, 23500945), (107, 18888610), (109, 18542030), (130, 15546779), (155, 13039234), (214, 9444305), (215, 9400378), (218, 9271015), (310, 6519617), (403, 5015090), (430, 4700189), (535, 3777722), (545, 3708406), (559, 3615530), (806, 2507545), (1070, 1888861), (1090, 1854203), (1118, 1807765), (1333, 1516190), (1391, 1452970), (1417, 1426310), (2015, 1003018), (2666, 758095), (2782, 726485), (2795, 723106), (2834, 713155), (3317, 609310), (3379, 598130), (4030, 501509), (4601, 439270), (4687, 431210), (5590, 361553), (6634, 304655), (6665, 303238), (6758, 299065), (6955, 290594), (7085, 285262), (9202, 219635), (9374, 215605), (11663, 173290), (13330, 151619), (13910, 145297), (14170, 142631), (16585, 121862), (16895, 119626), (17329, 116630), (23005, 87854), (23326, 86645), (23435, 86242), (33170, 60931), (33790, 59813), (34658, 58315), (43121, 46870), (43927, 46010)]