20697090

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{689903}}^1$

素因数の和:689913

約数の個数: 16

約数和(自身を含む): 49673088

約数和(自身を除く): 28975998

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 689903, 1379806, 2069709, 3449515, 4139418, 6899030, 10348545, 20697090]

約数ペア:

[(1, 20697090), (2, 10348545), (3, 6899030), (5, 4139418), (6, 3449515), (10, 2069709), (15, 1379806), (30, 689903)]