990243075

素因数分解:

$3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{425911}}^1$

素因数の和:425955

約数の個数: 24

約数和(自身を含む): 1690018816

約数和(自身を除く): 699775741

約数列:

[1, 3, 5, 15, 25, 31, 75, 93, 155, 465, 775, 2325, 425911, 1277733, 2129555, 6388665, 10647775, 13203241, 31943325, 39609723, 66016205, 198048615, 330081025, 990243075]

約数ペア:

[(1, 990243075), (3, 330081025), (5, 198048615), (15, 66016205), (25, 39609723), (31, 31943325), (75, 13203241), (93, 10647775), (155, 6388665), (465, 2129555), (775, 1277733), (2325, 425911)]