19289020

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{6143}}^1$

素因数の和:6309

約数の個数: 24

約数和(自身を含む): 40771584

約数和(自身を除く): 21482564

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 6143, 12286, 24572, 30715, 61430, 122860, 964451, 1928902, 3857804, 4822255, 9644510, 19289020]

約数ペア:

[(1, 19289020), (2, 9644510), (4, 4822255), (5, 3857804), (10, 1928902), (20, 964451), (157, 122860), (314, 61430), (628, 30715), (785, 24572), (1570, 12286), (3140, 6143)]