8428745

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:185

約数の個数: 32

約数和(自身を含む): 11612160

約数和(自身を除く): 3183415

約数列:

[1, 5, 13, 31, 47, 65, 89, 155, 235, 403, 445, 611, 1157, 1457, 2015, 2759, 3055, 4183, 5785, 7285, 13795, 18941, 20915, 35867, 54379, 94705, 129673, 179335, 271895, 648365, 1685749, 8428745]

約数ペア:

[(1, 8428745), (5, 1685749), (13, 648365), (31, 271895), (47, 179335), (65, 129673), (89, 94705), (155, 54379), (235, 35867), (403, 20915), (445, 18941), (611, 13795), (1157, 7285), (1457, 5785), (2015, 4183), (2759, 3055)]