80696840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{288203}}^1$

素因数の和:288221

約数の個数: 32

約数和(自身を含む): 207506880

約数和(自身を除く): 126810040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 288203, 576406, 1152812, 1441015, 2017421, 2305624, 2882030, 4034842, 5764060, 8069684, 10087105, 11528120, 16139368, 20174210, 40348420, 80696840]

約数ペア:

[(1, 80696840), (2, 40348420), (4, 20174210), (5, 16139368), (7, 11528120), (8, 10087105), (10, 8069684), (14, 5764060), (20, 4034842), (28, 2882030), (35, 2305624), (40, 2017421), (56, 1441015), (70, 1152812), (140, 576406), (280, 288203)]