12720848

素因数分解:

$2^4\times 7^1\times {\mathrm{53}}^1\times {\mathrm{2143}}^1$

素因数の和:2211

約数の個数: 40

約数和(自身を含む): 28712448

約数和(自身を除く): 15991600

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 53, 56, 106, 112, 212, 371, 424, 742, 848, 1484, 2143, 2968, 4286, 5936, 8572, 15001, 17144, 30002, 34288, 60004, 113579, 120008, 227158, 240016, 454316, 795053, 908632, 1590106, 1817264, 3180212, 6360424, 12720848]

約数ペア:

[(1, 12720848), (2, 6360424), (4, 3180212), (7, 1817264), (8, 1590106), (14, 908632), (16, 795053), (28, 454316), (53, 240016), (56, 227158), (106, 120008), (112, 113579), (212, 60004), (371, 34288), (424, 30002), (742, 17144), (848, 15001), (1484, 8572), (2143, 5936), (2968, 4286)]