1988965

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^2\times {\mathrm{43}}^1$

素因数の和:117

約数の個数: 24

約数和(自身を含む): 2759328

約数和(自身を除く): 770363

約数列:

[1, 5, 11, 29, 43, 55, 145, 215, 319, 473, 841, 1247, 1595, 2365, 4205, 6235, 9251, 13717, 36163, 46255, 68585, 180815, 397793, 1988965]

約数ペア:

[(1, 1988965), (5, 397793), (11, 180815), (29, 68585), (43, 46255), (55, 36163), (145, 13717), (215, 9251), (319, 6235), (473, 4205), (841, 2365), (1247, 1595)]