81775868

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{461}}^1\times {\mathrm{727}}^1$

素因数の和:1253

約数の個数: 24

約数和(自身を含む): 145969824

約数和(自身を除く): 64193956

約数列:

[1, 2, 4, 61, 122, 244, 461, 727, 922, 1454, 1844, 2908, 28121, 44347, 56242, 88694, 112484, 177388, 335147, 670294, 1340588, 20443967, 40887934, 81775868]

約数ペア:

[(1, 81775868), (2, 40887934), (4, 20443967), (61, 1340588), (122, 670294), (244, 335147), (461, 177388), (727, 112484), (922, 88694), (1454, 56242), (1844, 44347), (2908, 28121)]