199969215

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{163}}^1\times {\mathrm{283}}^1$

素因数の和:488

約数の個数: 48

約数和(自身を含む): 343171968

約数和(自身を除く): 143202753

約数列:

[1, 3, 5, 15, 17, 51, 85, 163, 255, 283, 289, 489, 815, 849, 867, 1415, 1445, 2445, 2771, 4245, 4335, 4811, 8313, 13855, 14433, 24055, 41565, 46129, 47107, 72165, 81787, 138387, 141321, 230645, 235535, 245361, 408935, 691935, 706605, 784193, 1226805, 2352579, 3920965, 11762895, 13331281, 39993843, 66656405, 199969215]

約数ペア:

[(1, 199969215), (3, 66656405), (5, 39993843), (15, 13331281), (17, 11762895), (51, 3920965), (85, 2352579), (163, 1226805), (255, 784193), (283, 706605), (289, 691935), (489, 408935), (815, 245361), (849, 235535), (867, 230645), (1415, 141321), (1445, 138387), (2445, 81787), (2771, 72165), (4245, 47107), (4335, 46129), (4811, 41565), (8313, 24055), (13855, 14433)]