2540560

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2887}}^1$

素因数の和:2911

約数の個数: 40

約数和(自身を含む): 6446016

約数和(自身を除く): 3905456

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 2887, 5774, 11548, 14435, 23096, 28870, 31757, 46192, 57740, 63514, 115480, 127028, 158785, 230960, 254056, 317570, 508112, 635140, 1270280, 2540560]

約数ペア:

[(1, 2540560), (2, 1270280), (4, 635140), (5, 508112), (8, 317570), (10, 254056), (11, 230960), (16, 158785), (20, 127028), (22, 115480), (40, 63514), (44, 57740), (55, 46192), (80, 31757), (88, 28870), (110, 23096), (176, 14435), (220, 11548), (440, 5774), (880, 2887)]