289900513

素因数分解:

$7^3\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{431}}^1$

素因数の和:542

約数の個数: 32

約数和(自身を含む): 354585600

約数和(自身を除く): 64685087

約数列:

[1, 7, 37, 49, 53, 259, 343, 371, 431, 1813, 1961, 2597, 3017, 12691, 13727, 15947, 18179, 21119, 22843, 96089, 111629, 147833, 159901, 672623, 781403, 845191, 1119307, 5469821, 5916337, 7835149, 41414359, 289900513]

約数ペア:

[(1, 289900513), (7, 41414359), (37, 7835149), (49, 5916337), (53, 5469821), (259, 1119307), (343, 845191), (371, 781403), (431, 672623), (1813, 159901), (1961, 147833), (2597, 111629), (3017, 96089), (12691, 22843), (13727, 21119), (15947, 18179)]