13111520

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^2\times {\mathrm{227}}^1$

素因数の和:280

約数の個数: 72

約数和(自身を含む): 32836104

約数和(自身を除く): 19724584

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 227, 304, 361, 380, 454, 608, 722, 760, 908, 1135, 1444, 1520, 1805, 1816, 2270, 2888, 3040, 3610, 3632, 4313, 4540, 5776, 7220, 7264, 8626, 9080, 11552, 14440, 17252, 18160, 21565, 28880, 34504, 36320, 43130, 57760, 69008, 81947, 86260, 138016, 163894, 172520, 327788, 345040, 409735, 655576, 690080, 819470, 1311152, 1638940, 2622304, 3277880, 6555760, 13111520]

約数ペア:

[(1, 13111520), (2, 6555760), (4, 3277880), (5, 2622304), (8, 1638940), (10, 1311152), (16, 819470), (19, 690080), (20, 655576), (32, 409735), (38, 345040), (40, 327788), (76, 172520), (80, 163894), (95, 138016), (152, 86260), (160, 81947), (190, 69008), (227, 57760), (304, 43130), (361, 36320), (380, 34504), (454, 28880), (608, 21565), (722, 18160), (760, 17252), (908, 14440), (1135, 11552), (1444, 9080), (1520, 8626), (1805, 7264), (1816, 7220), (2270, 5776), (2888, 4540), (3040, 4313), (3610, 3632)]