8712040

素因数分解:

$2^3\times 5^1\times {\mathrm{353}}^1\times {\mathrm{617}}^1$

素因数の和:981

約数の個数: 32

約数和(自身を含む): 19689480

約数和(自身を除く): 10977440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 353, 617, 706, 1234, 1412, 1765, 2468, 2824, 3085, 3530, 4936, 6170, 7060, 12340, 14120, 24680, 217801, 435602, 871204, 1089005, 1742408, 2178010, 4356020, 8712040]

約数ペア:

[(1, 8712040), (2, 4356020), (4, 2178010), (5, 1742408), (8, 1089005), (10, 871204), (20, 435602), (40, 217801), (353, 24680), (617, 14120), (706, 12340), (1234, 7060), (1412, 6170), (1765, 4936), (2468, 3530), (2824, 3085)]