1987555

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{349}}^1$

素因数の和:438

約数の個数: 16

約数和(自身を含む): 2570400

約数和(自身を除く): 582845

約数列:

[1, 5, 17, 67, 85, 335, 349, 1139, 1745, 5695, 5933, 23383, 29665, 116915, 397511, 1987555]

約数ペア:

[(1, 1987555), (5, 397511), (17, 116915), (67, 29665), (85, 23383), (335, 5933), (349, 5695), (1139, 1745)]