16620280

素因数分解:

$2^3\times 5^1\times {\mathrm{415507}}^1$

素因数の和:415518

約数の個数: 16

約数和(自身を含む): 37395720

約数和(自身を除く): 20775440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 415507, 831014, 1662028, 2077535, 3324056, 4155070, 8310140, 16620280]

約数ペア:

[(1, 16620280), (2, 8310140), (4, 4155070), (5, 3324056), (8, 2077535), (10, 1662028), (20, 831014), (40, 415507)]