131231280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{353}}^1\times {\mathrm{1549}}^1$

素因数の和:1918

約数の個数: 80

約数和(自身を含む): 408232800

約数和(自身を除く): 277001520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 353, 706, 1059, 1412, 1549, 1765, 2118, 2824, 3098, 3530, 4236, 4647, 5295, 5648, 6196, 7060, 7745, 8472, 9294, 10590, 12392, 14120, 15490, 16944, 18588, 21180, 23235, 24784, 28240, 30980, 37176, 42360, 46470, 61960, 74352, 84720, 92940, 123920, 185880, 371760, 546797, 1093594, 1640391, 2187188, 2733985, 3280782, 4374376, 5467970, 6561564, 8201955, 8748752, 10935940, 13123128, 16403910, 21871880, 26246256, 32807820, 43743760, 65615640, 131231280]

約数ペア:

[(1, 131231280), (2, 65615640), (3, 43743760), (4, 32807820), (5, 26246256), (6, 21871880), (8, 16403910), (10, 13123128), (12, 10935940), (15, 8748752), (16, 8201955), (20, 6561564), (24, 5467970), (30, 4374376), (40, 3280782), (48, 2733985), (60, 2187188), (80, 1640391), (120, 1093594), (240, 546797), (353, 371760), (706, 185880), (1059, 123920), (1412, 92940), (1549, 84720), (1765, 74352), (2118, 61960), (2824, 46470), (3098, 42360), (3530, 37176), (4236, 30980), (4647, 28240), (5295, 24784), (5648, 23235), (6196, 21180), (7060, 18588), (7745, 16944), (8472, 15490), (9294, 14120), (10590, 12392)]