1331191690

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{191}}^2$

素因数の和:519

約数の個数: 48

約数和(自身を含む): 2495230920

約数和(自身を除く): 1164039230

約数列:

[1, 2, 5, 10, 41, 82, 89, 178, 191, 205, 382, 410, 445, 890, 955, 1910, 3649, 7298, 7831, 15662, 16999, 18245, 33998, 36481, 36490, 39155, 72962, 78310, 84995, 169990, 182405, 364810, 696959, 1393918, 1495721, 2991442, 3246809, 3484795, 6493618, 6969590, 7478605, 14957210, 16234045, 32468090, 133119169, 266238338, 665595845, 1331191690]

約数ペア:

[(1, 1331191690), (2, 665595845), (5, 266238338), (10, 133119169), (41, 32468090), (82, 16234045), (89, 14957210), (178, 7478605), (191, 6969590), (205, 6493618), (382, 3484795), (410, 3246809), (445, 2991442), (890, 1495721), (955, 1393918), (1910, 696959), (3649, 364810), (7298, 182405), (7831, 169990), (15662, 84995), (16999, 78310), (18245, 72962), (33998, 39155), (36481, 36490)]