220180120

素因数分解:

$2^3\times 5^1\times {\mathrm{5504503}}^1$

素因数の和:5504514

約数の個数: 16

約数和(自身を含む): 495405360

約数和(自身を除く): 275225240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5504503, 11009006, 22018012, 27522515, 44036024, 55045030, 110090060, 220180120]

約数ペア:

[(1, 220180120), (2, 110090060), (4, 55045030), (5, 44036024), (8, 27522515), (10, 22018012), (20, 11009006), (40, 5504503)]