71904820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{276557}}^1$

素因数の和:276579

約数の個数: 24

約数和(自身を含む): 162616104

約数和(自身を除く): 90711284

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 276557, 553114, 1106228, 1382785, 2765570, 3595241, 5531140, 7190482, 14380964, 17976205, 35952410, 71904820]

約数ペア:

[(1, 71904820), (2, 35952410), (4, 17976205), (5, 14380964), (10, 7190482), (13, 5531140), (20, 3595241), (26, 2765570), (52, 1382785), (65, 1106228), (130, 553114), (260, 276557)]