208778800

素因数分解:

$2^4\times 5^2\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{149}}^1$

素因数の和:311

約数の個数: 120

約数和(自身を含む): 525859200

約数和(自身を除く): 317080400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 80, 100, 113, 124, 149, 155, 200, 226, 248, 298, 310, 400, 452, 496, 565, 596, 620, 745, 775, 904, 1130, 1192, 1240, 1490, 1550, 1808, 2260, 2384, 2480, 2825, 2980, 3100, 3503, 3725, 4520, 4619, 5650, 5960, 6200, 7006, 7450, 9040, 9238, 11300, 11920, 12400, 14012, 14900, 16837, 17515, 18476, 22600, 23095, 28024, 29800, 33674, 35030, 36952, 45200, 46190, 56048, 59600, 67348, 70060, 73904, 84185, 87575, 92380, 115475, 134696, 140120, 168370, 175150, 184760, 230950, 269392, 280240, 336740, 350300, 369520, 420925, 461900, 521947, 673480, 700600, 841850, 923800, 1043894, 1346960, 1401200, 1683700, 1847600, 2087788, 2609735, 3367400, 4175576, 5219470, 6734800, 8351152, 10438940, 13048675, 20877880, 26097350, 41755760, 52194700, 104389400, 208778800]

約数ペア:

[(1, 208778800), (2, 104389400), (4, 52194700), (5, 41755760), (8, 26097350), (10, 20877880), (16, 13048675), (20, 10438940), (25, 8351152), (31, 6734800), (40, 5219470), (50, 4175576), (62, 3367400), (80, 2609735), (100, 2087788), (113, 1847600), (124, 1683700), (149, 1401200), (155, 1346960), (200, 1043894), (226, 923800), (248, 841850), (298, 700600), (310, 673480), (400, 521947), (452, 461900), (496, 420925), (565, 369520), (596, 350300), (620, 336740), (745, 280240), (775, 269392), (904, 230950), (1130, 184760), (1192, 175150), (1240, 168370), (1490, 140120), (1550, 134696), (1808, 115475), (2260, 92380), (2384, 87575), (2480, 84185), (2825, 73904), (2980, 70060), (3100, 67348), (3503, 59600), (3725, 56048), (4520, 46190), (4619, 45200), (5650, 36952), (5960, 35030), (6200, 33674), (7006, 29800), (7450, 28024), (9040, 23095), (9238, 22600), (11300, 18476), (11920, 17515), (12400, 16837), (14012, 14900)]