71708420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{353}}^1\times {\mathrm{1451}}^1$

素因数の和:1820

約数の個数: 48

約数和(自身を含む): 172706688

約数和(自身を除く): 100998268

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 353, 706, 1412, 1451, 1765, 2471, 2902, 3530, 4942, 5804, 7060, 7255, 9884, 10157, 12355, 14510, 20314, 24710, 29020, 40628, 49420, 50785, 101570, 203140, 512203, 1024406, 2048812, 2561015, 3585421, 5122030, 7170842, 10244060, 14341684, 17927105, 35854210, 71708420]

約数ペア:

[(1, 71708420), (2, 35854210), (4, 17927105), (5, 14341684), (7, 10244060), (10, 7170842), (14, 5122030), (20, 3585421), (28, 2561015), (35, 2048812), (70, 1024406), (140, 512203), (353, 203140), (706, 101570), (1412, 50785), (1451, 49420), (1765, 40628), (2471, 29020), (2902, 24710), (3530, 20314), (4942, 14510), (5804, 12355), (7060, 10157), (7255, 9884)]