20380262

素因数分解:

$2^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{18427}}^1$

素因数の和:18515

約数の個数: 16

約数和(自身を含む): 35381760

約数和(自身を除く): 15001498

約数列:

[1, 2, 7, 14, 79, 158, 553, 1106, 18427, 36854, 128989, 257978, 1455733, 2911466, 10190131, 20380262]

約数ペア:

[(1, 20380262), (2, 10190131), (7, 2911466), (14, 1455733), (79, 257978), (158, 128989), (553, 36854), (1106, 18427)]