12707080

素因数分解:

$2^3\times 5^1\times {\mathrm{491}}^1\times {\mathrm{647}}^1$

素因数の和:1149

約数の個数: 32

約数和(自身を含む): 28693440

約数和(自身を除く): 15986360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 491, 647, 982, 1294, 1964, 2455, 2588, 3235, 3928, 4910, 5176, 6470, 9820, 12940, 19640, 25880, 317677, 635354, 1270708, 1588385, 2541416, 3176770, 6353540, 12707080]

約数ペア:

[(1, 12707080), (2, 6353540), (4, 3176770), (5, 2541416), (8, 1588385), (10, 1270708), (20, 635354), (40, 317677), (491, 25880), (647, 19640), (982, 12940), (1294, 9820), (1964, 6470), (2455, 5176), (2588, 4910), (3235, 3928)]