81700770

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{20789}}^1$

素因数の和:20930

約数の個数: 32

約数和(自身を含む): 197588160

約数和(自身を除く): 115887390

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 131, 262, 393, 655, 786, 1310, 1965, 3930, 20789, 41578, 62367, 103945, 124734, 207890, 311835, 623670, 2723359, 5446718, 8170077, 13616795, 16340154, 27233590, 40850385, 81700770]

約数ペア:

[(1, 81700770), (2, 40850385), (3, 27233590), (5, 16340154), (6, 13616795), (10, 8170077), (15, 5446718), (30, 2723359), (131, 623670), (262, 311835), (393, 207890), (655, 124734), (786, 103945), (1310, 62367), (1965, 41578), (3930, 20789)]