20920208

素因数分解:

$2^4\times {\mathrm{307}}^1\times {\mathrm{4259}}^1$

素因数の和:4574

約数の個数: 20

約数和(自身を含む): 40674480

約数和(自身を除く): 19754272

約数列:

[1, 2, 4, 8, 16, 307, 614, 1228, 2456, 4259, 4912, 8518, 17036, 34072, 68144, 1307513, 2615026, 5230052, 10460104, 20920208]

約数ペア:

[(1, 20920208), (2, 10460104), (4, 5230052), (8, 2615026), (16, 1307513), (307, 68144), (614, 34072), (1228, 17036), (2456, 8518), (4259, 4912)]