66766420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{193}}^1\times {\mathrm{353}}^1$

素因数の和:569

約数の個数: 72

約数和(自身を含む): 164410344

約数和(自身を除く): 97643924

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 193, 196, 245, 353, 386, 490, 706, 772, 965, 980, 1351, 1412, 1765, 1930, 2471, 2702, 3530, 3860, 4942, 5404, 6755, 7060, 9457, 9884, 12355, 13510, 17297, 18914, 24710, 27020, 34594, 37828, 47285, 49420, 68129, 69188, 86485, 94570, 136258, 172970, 189140, 272516, 340645, 345940, 476903, 681290, 953806, 1362580, 1907612, 2384515, 3338321, 4769030, 6676642, 9538060, 13353284, 16691605, 33383210, 66766420]

約数ペア:

[(1, 66766420), (2, 33383210), (4, 16691605), (5, 13353284), (7, 9538060), (10, 6676642), (14, 4769030), (20, 3338321), (28, 2384515), (35, 1907612), (49, 1362580), (70, 953806), (98, 681290), (140, 476903), (193, 345940), (196, 340645), (245, 272516), (353, 189140), (386, 172970), (490, 136258), (706, 94570), (772, 86485), (965, 69188), (980, 68129), (1351, 49420), (1412, 47285), (1765, 37828), (1930, 34594), (2471, 27020), (2702, 24710), (3530, 18914), (3860, 17297), (4942, 13510), (5404, 12355), (6755, 9884), (7060, 9457)]