87215120

素因数分解:

$2^4\times 5^1\times {\mathrm{1090189}}^1$

素因数の和:1090202

約数の個数: 20

約数和(自身を含む): 202775340

約数和(自身を除く): 115560220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1090189, 2180378, 4360756, 5450945, 8721512, 10901890, 17443024, 21803780, 43607560, 87215120]

約数ペア:

[(1, 87215120), (2, 43607560), (4, 21803780), (5, 17443024), (8, 10901890), (10, 8721512), (16, 5450945), (20, 4360756), (40, 2180378), (80, 1090189)]