12809240

素因数分解:

$2^3\times 5^1\times {\mathrm{179}}^1\times {\mathrm{1789}}^1$

素因数の和:1979

約数の個数: 32

約数和(自身を含む): 28998000

約数和(自身を除く): 16188760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 179, 358, 716, 895, 1432, 1789, 1790, 3578, 3580, 7156, 7160, 8945, 14312, 17890, 35780, 71560, 320231, 640462, 1280924, 1601155, 2561848, 3202310, 6404620, 12809240]

約数ペア:

[(1, 12809240), (2, 6404620), (4, 3202310), (5, 2561848), (8, 1601155), (10, 1280924), (20, 640462), (40, 320231), (179, 71560), (358, 35780), (716, 17890), (895, 14312), (1432, 8945), (1789, 7160), (1790, 7156), (3578, 3580)]