216131860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{6007}}^1$

素因数の和:6280

約数の個数: 48

約数和(自身を含む): 520821504

約数和(自身を除く): 304689644

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 257, 514, 1028, 1285, 1799, 2570, 3598, 5140, 6007, 7196, 8995, 12014, 17990, 24028, 30035, 35980, 42049, 60070, 84098, 120140, 168196, 210245, 420490, 840980, 1543799, 3087598, 6175196, 7718995, 10806593, 15437990, 21613186, 30875980, 43226372, 54032965, 108065930, 216131860]

約数ペア:

[(1, 216131860), (2, 108065930), (4, 54032965), (5, 43226372), (7, 30875980), (10, 21613186), (14, 15437990), (20, 10806593), (28, 7718995), (35, 6175196), (70, 3087598), (140, 1543799), (257, 840980), (514, 420490), (1028, 210245), (1285, 168196), (1799, 120140), (2570, 84098), (3598, 60070), (5140, 42049), (6007, 35980), (7196, 30035), (8995, 24028), (12014, 17990)]