87280940

素因数分解:

$2^2\times 5^1\times {\mathrm{4364047}}^1$

素因数の和:4364056

約数の個数: 12

約数和(自身を含む): 183290016

約数和(自身を除く): 96009076

約数列:

[1, 2, 4, 5, 10, 20, 4364047, 8728094, 17456188, 21820235, 43640470, 87280940]

約数ペア:

[(1, 87280940), (2, 43640470), (4, 21820235), (5, 17456188), (10, 8728094), (20, 4364047)]