80665880

素因数分解:

$2^3\times 5^1\times {\mathrm{419}}^1\times {\mathrm{4813}}^1$

素因数の和:5243

約数の個数: 32

約数和(自身を含む): 181969200

約数和(自身を除く): 101303320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 419, 838, 1676, 2095, 3352, 4190, 4813, 8380, 9626, 16760, 19252, 24065, 38504, 48130, 96260, 192520, 2016647, 4033294, 8066588, 10083235, 16133176, 20166470, 40332940, 80665880]

約数ペア:

[(1, 80665880), (2, 40332940), (4, 20166470), (5, 16133176), (8, 10083235), (10, 8066588), (20, 4033294), (40, 2016647), (419, 192520), (838, 96260), (1676, 48130), (2095, 38504), (3352, 24065), (4190, 19252), (4813, 16760), (8380, 9626)]