20642050

素因数分解:

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

素因数の和:2923

約数の個数: 48

約数和(自身を含む): 45122112

約数和(自身を除く): 24480062

約数列:

[1, 2, 5, 10, 11, 13, 22, 25, 26, 50, 55, 65, 110, 130, 143, 275, 286, 325, 550, 650, 715, 1430, 2887, 3575, 5774, 7150, 14435, 28870, 31757, 37531, 63514, 72175, 75062, 144350, 158785, 187655, 317570, 375310, 412841, 793925, 825682, 938275, 1587850, 1876550, 2064205, 4128410, 10321025, 20642050]

約数ペア:

[(1, 20642050), (2, 10321025), (5, 4128410), (10, 2064205), (11, 1876550), (13, 1587850), (22, 938275), (25, 825682), (26, 793925), (50, 412841), (55, 375310), (65, 317570), (110, 187655), (130, 158785), (143, 144350), (275, 75062), (286, 72175), (325, 63514), (550, 37531), (650, 31757), (715, 28870), (1430, 14435), (2887, 7150), (3575, 5774)]