64173020

素因数分解:

$2^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{7309}}^1$

素因数の和:7757

約数の個数: 24

約数和(自身を含む): 135088800

約数和(自身を除く): 70915780

約数列:

[1, 2, 4, 5, 10, 20, 439, 878, 1756, 2195, 4390, 7309, 8780, 14618, 29236, 36545, 73090, 146180, 3208651, 6417302, 12834604, 16043255, 32086510, 64173020]

約数ペア:

[(1, 64173020), (2, 32086510), (4, 16043255), (5, 12834604), (10, 6417302), (20, 3208651), (439, 146180), (878, 73090), (1756, 36545), (2195, 29236), (4390, 14618), (7309, 8780)]