71781405

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{1021}}^1$

素因数の和:1181

約数の個数: 32

約数和(自身を含む): 118715520

約数和(自身を除く): 46934115

約数列:

[1, 3, 5, 15, 43, 109, 129, 215, 327, 545, 645, 1021, 1635, 3063, 4687, 5105, 14061, 15315, 23435, 43903, 70305, 111289, 131709, 219515, 333867, 556445, 658545, 1669335, 4785427, 14356281, 23927135, 71781405]

約数ペア:

[(1, 71781405), (3, 23927135), (5, 14356281), (15, 4785427), (43, 1669335), (109, 658545), (129, 556445), (215, 333867), (327, 219515), (545, 131709), (645, 111289), (1021, 70305), (1635, 43903), (3063, 23435), (4687, 15315), (5105, 14061)]