13807220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{193}}^1$

素因数の和:289

約数の個数: 72

約数和(自身を含む): 34368264

約数和(自身を除く): 20561044

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 73, 98, 140, 146, 193, 196, 245, 292, 365, 386, 490, 511, 730, 772, 965, 980, 1022, 1351, 1460, 1930, 2044, 2555, 2702, 3577, 3860, 5110, 5404, 6755, 7154, 9457, 10220, 13510, 14089, 14308, 17885, 18914, 27020, 28178, 35770, 37828, 47285, 56356, 70445, 71540, 94570, 98623, 140890, 189140, 197246, 281780, 394492, 493115, 690361, 986230, 1380722, 1972460, 2761444, 3451805, 6903610, 13807220]

約数ペア:

[(1, 13807220), (2, 6903610), (4, 3451805), (5, 2761444), (7, 1972460), (10, 1380722), (14, 986230), (20, 690361), (28, 493115), (35, 394492), (49, 281780), (70, 197246), (73, 189140), (98, 140890), (140, 98623), (146, 94570), (193, 71540), (196, 70445), (245, 56356), (292, 47285), (365, 37828), (386, 35770), (490, 28178), (511, 27020), (730, 18914), (772, 17885), (965, 14308), (980, 14089), (1022, 13510), (1351, 10220), (1460, 9457), (1930, 7154), (2044, 6755), (2555, 5404), (2702, 5110), (3577, 3860)]