64689872

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{311009}}^1$

素因数の和:311030

約数の個数: 20

約数和(自身を含む): 134978340

約数和(自身を除く): 70288468

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 311009, 622018, 1244036, 2488072, 4043117, 4976144, 8086234, 16172468, 32344936, 64689872]

約数ペア:

[(1, 64689872), (2, 32344936), (4, 16172468), (8, 8086234), (13, 4976144), (16, 4043117), (26, 2488072), (52, 1244036), (104, 622018), (208, 311009)]