81955055

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{641}}^1$

素因数の和:947

約数の個数: 32

約数和(自身を含む): 121661568

約数和(自身を除く): 39706513

約数列:

[1, 5, 7, 13, 35, 65, 91, 281, 455, 641, 1405, 1967, 3205, 3653, 4487, 8333, 9835, 18265, 22435, 25571, 41665, 58331, 127855, 180121, 291655, 900605, 1260847, 2341573, 6304235, 11707865, 16391011, 81955055]

約数ペア:

[(1, 81955055), (5, 16391011), (7, 11707865), (13, 6304235), (35, 2341573), (65, 1260847), (91, 900605), (281, 291655), (455, 180121), (641, 127855), (1405, 58331), (1967, 41665), (3205, 25571), (3653, 22435), (4487, 18265), (8333, 9835)]