890251915

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{809}}^1\times {\mathrm{1367}}^1$

素因数の和:2211

約数の個数: 32

約数和(自身を含む): 1276508160

約数和(自身を除く): 386256245

約数列:

[1, 5, 7, 23, 35, 115, 161, 805, 809, 1367, 4045, 5663, 6835, 9569, 18607, 28315, 31441, 47845, 93035, 130249, 157205, 220087, 651245, 1100435, 1105903, 5529515, 7741321, 25435769, 38706605, 127178845, 178050383, 890251915]

約数ペア:

[(1, 890251915), (5, 178050383), (7, 127178845), (23, 38706605), (35, 25435769), (115, 7741321), (161, 5529515), (805, 1105903), (809, 1100435), (1367, 651245), (4045, 220087), (5663, 157205), (6835, 130249), (9569, 93035), (18607, 47845), (28315, 31441)]