18338325

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{757}}^1$

素因数の和:806

約数の個数: 48

約数和(自身を含む): 33837120

約数和(自身を除く): 15498795

約数列:

[1, 3, 5, 15, 17, 19, 25, 51, 57, 75, 85, 95, 255, 285, 323, 425, 475, 757, 969, 1275, 1425, 1615, 2271, 3785, 4845, 8075, 11355, 12869, 14383, 18925, 24225, 38607, 43149, 56775, 64345, 71915, 193035, 215745, 244511, 321725, 359575, 733533, 965175, 1078725, 1222555, 3667665, 6112775, 18338325]

約数ペア:

[(1, 18338325), (3, 6112775), (5, 3667665), (15, 1222555), (17, 1078725), (19, 965175), (25, 733533), (51, 359575), (57, 321725), (75, 244511), (85, 215745), (95, 193035), (255, 71915), (285, 64345), (323, 56775), (425, 43149), (475, 38607), (757, 24225), (969, 18925), (1275, 14383), (1425, 12869), (1615, 11355), (2271, 8075), (3785, 4845)]