12747340

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{191}}^1$

素因数の和:318

約数の個数: 48

約数和(自身を含む): 27869184

約数和(自身を除く): 15121844

約数列:

[1, 2, 4, 5, 10, 20, 47, 71, 94, 142, 188, 191, 235, 284, 355, 382, 470, 710, 764, 940, 955, 1420, 1910, 3337, 3820, 6674, 8977, 13348, 13561, 16685, 17954, 27122, 33370, 35908, 44885, 54244, 66740, 67805, 89770, 135610, 179540, 271220, 637367, 1274734, 2549468, 3186835, 6373670, 12747340]

約数ペア:

[(1, 12747340), (2, 6373670), (4, 3186835), (5, 2549468), (10, 1274734), (20, 637367), (47, 271220), (71, 179540), (94, 135610), (142, 89770), (188, 67805), (191, 66740), (235, 54244), (284, 44885), (355, 35908), (382, 33370), (470, 27122), (710, 17954), (764, 16685), (940, 13561), (955, 13348), (1420, 8977), (1910, 6674), (3337, 3820)]