81646480

素因数分解:

$2^4\times 5^1\times {\mathrm{433}}^1\times {\mathrm{2357}}^1$

素因数の和:2803

約数の個数: 40

約数和(自身を含む): 190347192

約数和(自身を除く): 108700712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 433, 866, 1732, 2165, 2357, 3464, 4330, 4714, 6928, 8660, 9428, 11785, 17320, 18856, 23570, 34640, 37712, 47140, 94280, 188560, 1020581, 2041162, 4082324, 5102905, 8164648, 10205810, 16329296, 20411620, 40823240, 81646480]

約数ペア:

[(1, 81646480), (2, 40823240), (4, 20411620), (5, 16329296), (8, 10205810), (10, 8164648), (16, 5102905), (20, 4082324), (40, 2041162), (80, 1020581), (433, 188560), (866, 94280), (1732, 47140), (2165, 37712), (2357, 34640), (3464, 23570), (4330, 18856), (4714, 17320), (6928, 11785), (8660, 9428)]