211335680

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2663}}^1$

素因数の和:2717

約数の個数: 80

約数和(自身を含む): 523252224

約数和(自身を除く): 311916544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 992, 1240, 1280, 1984, 2480, 2560, 2663, 3968, 4960, 5326, 7936, 9920, 10652, 13315, 15872, 19840, 21304, 26630, 39680, 42608, 53260, 79360, 82553, 85216, 106520, 165106, 170432, 213040, 330212, 340864, 412765, 426080, 660424, 681728, 825530, 852160, 1320848, 1363456, 1651060, 1704320, 2641696, 3302120, 3408640, 5283392, 6604240, 6817280, 10566784, 13208480, 21133568, 26416960, 42267136, 52833920, 105667840, 211335680]

約数ペア:

[(1, 211335680), (2, 105667840), (4, 52833920), (5, 42267136), (8, 26416960), (10, 21133568), (16, 13208480), (20, 10566784), (31, 6817280), (32, 6604240), (40, 5283392), (62, 3408640), (64, 3302120), (80, 2641696), (124, 1704320), (128, 1651060), (155, 1363456), (160, 1320848), (248, 852160), (256, 825530), (310, 681728), (320, 660424), (496, 426080), (512, 412765), (620, 340864), (640, 330212), (992, 213040), (1240, 170432), (1280, 165106), (1984, 106520), (2480, 85216), (2560, 82553), (2663, 79360), (3968, 53260), (4960, 42608), (5326, 39680), (7936, 26630), (9920, 21304), (10652, 19840), (13315, 15872)]