19754320

素因数分解:

$2^4\times 5^1\times {\mathrm{246929}}^1$

素因数の和:246942

約数の個数: 20

約数和(自身を含む): 45928980

約数和(自身を除く): 26174660

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 246929, 493858, 987716, 1234645, 1975432, 2469290, 3950864, 4938580, 9877160, 19754320]

約数ペア:

[(1, 19754320), (2, 9877160), (4, 4938580), (5, 3950864), (8, 2469290), (10, 1975432), (16, 1234645), (20, 987716), (40, 493858), (80, 246929)]