51291760

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{331}}^1$

素因数の和:506

約数の個数: 80

約数和(自身を含む): 129679200

約数和(自身を除く): 78387440

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 149, 208, 260, 298, 331, 520, 596, 662, 745, 1040, 1192, 1324, 1490, 1655, 1937, 2384, 2648, 2980, 3310, 3874, 4303, 5296, 5960, 6620, 7748, 8606, 9685, 11920, 13240, 15496, 17212, 19370, 21515, 26480, 30992, 34424, 38740, 43030, 49319, 68848, 77480, 86060, 98638, 154960, 172120, 197276, 246595, 344240, 394552, 493190, 641147, 789104, 986380, 1282294, 1972760, 2564588, 3205735, 3945520, 5129176, 6411470, 10258352, 12822940, 25645880, 51291760]

約数ペア:

[(1, 51291760), (2, 25645880), (4, 12822940), (5, 10258352), (8, 6411470), (10, 5129176), (13, 3945520), (16, 3205735), (20, 2564588), (26, 1972760), (40, 1282294), (52, 986380), (65, 789104), (80, 641147), (104, 493190), (130, 394552), (149, 344240), (208, 246595), (260, 197276), (298, 172120), (331, 154960), (520, 98638), (596, 86060), (662, 77480), (745, 68848), (1040, 49319), (1192, 43030), (1324, 38740), (1490, 34424), (1655, 30992), (1937, 26480), (2384, 21515), (2648, 19370), (2980, 17212), (3310, 15496), (3874, 13240), (4303, 11920), (5296, 9685), (5960, 8606), (6620, 7748)]