80843140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{82493}}^1$

素因数の和:82516

約数の個数: 36

約数和(自身を含む): 197490636

約数和(自身を除く): 116647496

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 82493, 164986, 329972, 412465, 577451, 824930, 1154902, 1649860, 2309804, 2887255, 4042157, 5774510, 8084314, 11549020, 16168628, 20210785, 40421570, 80843140]

約数ペア:

[(1, 80843140), (2, 40421570), (4, 20210785), (5, 16168628), (7, 11549020), (10, 8084314), (14, 5774510), (20, 4042157), (28, 2887255), (35, 2309804), (49, 1649860), (70, 1154902), (98, 824930), (140, 577451), (196, 412465), (245, 329972), (490, 164986), (980, 82493)]