30278920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{108139}}^1$

素因数の和:108157

約数の個数: 32

約数和(自身を含む): 77860800

約数和(自身を除く): 47581880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 108139, 216278, 432556, 540695, 756973, 865112, 1081390, 1513946, 2162780, 3027892, 3784865, 4325560, 6055784, 7569730, 15139460, 30278920]

約数ペア:

[(1, 30278920), (2, 15139460), (4, 7569730), (5, 6055784), (7, 4325560), (8, 3784865), (10, 3027892), (14, 2162780), (20, 1513946), (28, 1081390), (35, 865112), (40, 756973), (56, 540695), (70, 432556), (140, 216278), (280, 108139)]