12172240

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2143}}^1$

素因数の和:2227

約数の個数: 40

約数和(自身を含む): 28712448

約数和(自身を除く): 16540208

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2143, 2840, 4286, 5680, 8572, 10715, 17144, 21430, 34288, 42860, 85720, 152153, 171440, 304306, 608612, 760765, 1217224, 1521530, 2434448, 3043060, 6086120, 12172240]

約数ペア:

[(1, 12172240), (2, 6086120), (4, 3043060), (5, 2434448), (8, 1521530), (10, 1217224), (16, 760765), (20, 608612), (40, 304306), (71, 171440), (80, 152153), (142, 85720), (284, 42860), (355, 34288), (568, 21430), (710, 17144), (1136, 10715), (1420, 8572), (2143, 5680), (2840, 4286)]