19851590

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{251}}^1\times {\mathrm{719}}^1$

素因数の和:988

約数の個数: 32

約数和(自身を含む): 39191040

約数和(自身を除く): 19339450

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 251, 502, 719, 1255, 1438, 2510, 2761, 3595, 5522, 7190, 7909, 13805, 15818, 27610, 39545, 79090, 180469, 360938, 902345, 1804690, 1985159, 3970318, 9925795, 19851590]

約数ペア:

[(1, 19851590), (2, 9925795), (5, 3970318), (10, 1985159), (11, 1804690), (22, 902345), (55, 360938), (110, 180469), (251, 79090), (502, 39545), (719, 27610), (1255, 15818), (1438, 13805), (2510, 7909), (2761, 7190), (3595, 5522)]