131104640

素因数分解:

$2^7\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1613}}^1$

素因数の和:1759

約数の個数: 64

約数和(自身を含む): 316085760

約数和(自身を除く): 184981120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 127, 128, 160, 254, 320, 508, 635, 640, 1016, 1270, 1613, 2032, 2540, 3226, 4064, 5080, 6452, 8065, 8128, 10160, 12904, 16130, 16256, 20320, 25808, 32260, 40640, 51616, 64520, 81280, 103232, 129040, 204851, 206464, 258080, 409702, 516160, 819404, 1024255, 1032320, 1638808, 2048510, 3277616, 4097020, 6555232, 8194040, 13110464, 16388080, 26220928, 32776160, 65552320, 131104640]

約数ペア:

[(1, 131104640), (2, 65552320), (4, 32776160), (5, 26220928), (8, 16388080), (10, 13110464), (16, 8194040), (20, 6555232), (32, 4097020), (40, 3277616), (64, 2048510), (80, 1638808), (127, 1032320), (128, 1024255), (160, 819404), (254, 516160), (320, 409702), (508, 258080), (635, 206464), (640, 204851), (1016, 129040), (1270, 103232), (1613, 81280), (2032, 64520), (2540, 51616), (3226, 40640), (4064, 32260), (5080, 25808), (6452, 20320), (8065, 16256), (8128, 16130), (10160, 12904)]