8256820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2887}}^1$

素因数の和:2920

約数の個数: 48

約数和(自身を含む): 20377728

約数和(自身を除く): 12120908

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 2887, 5774, 11548, 14435, 28870, 31757, 37531, 57740, 63514, 75062, 127028, 150124, 158785, 187655, 317570, 375310, 412841, 635140, 750620, 825682, 1651364, 2064205, 4128410, 8256820]

約数ペア:

[(1, 8256820), (2, 4128410), (4, 2064205), (5, 1651364), (10, 825682), (11, 750620), (13, 635140), (20, 412841), (22, 375310), (26, 317570), (44, 187655), (52, 158785), (55, 150124), (65, 127028), (110, 75062), (130, 63514), (143, 57740), (220, 37531), (260, 31757), (286, 28870), (572, 14435), (715, 11548), (1430, 5774), (2860, 2887)]