20013688

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{353}}^1\times {\mathrm{373}}^1$

素因数の和:751

約数の個数: 32

約数和(自身を含む): 39718800

約数和(自身を除く): 19705112

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 353, 373, 706, 746, 1412, 1492, 2824, 2984, 6707, 7087, 13414, 14174, 26828, 28348, 53656, 56696, 131669, 263338, 526676, 1053352, 2501711, 5003422, 10006844, 20013688]

約数ペア:

[(1, 20013688), (2, 10006844), (4, 5003422), (8, 2501711), (19, 1053352), (38, 526676), (76, 263338), (152, 131669), (353, 56696), (373, 53656), (706, 28348), (746, 26828), (1412, 14174), (1492, 13414), (2824, 7087), (2984, 6707)]