81249428

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{659}}^1\times {\mathrm{2371}}^1$

素因数の和:3047

約数の個数: 24

約数和(自身を含む): 153420960

約数和(自身を除く): 72171532

約数列:

[1, 2, 4, 13, 26, 52, 659, 1318, 2371, 2636, 4742, 8567, 9484, 17134, 30823, 34268, 61646, 123292, 1562489, 3124978, 6249956, 20312357, 40624714, 81249428]

約数ペア:

[(1, 81249428), (2, 40624714), (4, 20312357), (13, 6249956), (26, 3124978), (52, 1562489), (659, 123292), (1318, 61646), (2371, 34268), (2636, 30823), (4742, 17134), (8567, 9484)]