66866260

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{13009}}^1$

素因数の和:13275

約数の個数: 24

約数和(自身を含む): 140976360

約数和(自身を除く): 74110100

約数列:

[1, 2, 4, 5, 10, 20, 257, 514, 1028, 1285, 2570, 5140, 13009, 26018, 52036, 65045, 130090, 260180, 3343313, 6686626, 13373252, 16716565, 33433130, 66866260]

約数ペア:

[(1, 66866260), (2, 33433130), (4, 16716565), (5, 13373252), (10, 6686626), (20, 3343313), (257, 260180), (514, 130090), (1028, 65045), (1285, 52036), (2570, 26018), (5140, 13009)]