419985

素因数分解:

$3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1$

素因数の和:95

約数の個数: 40

約数和(自身を含む): 810216

約数和(自身を除く): 390231

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 61, 81, 85, 135, 153, 183, 255, 305, 405, 459, 549, 765, 915, 1037, 1377, 1647, 2295, 2745, 3111, 4941, 5185, 6885, 8235, 9333, 15555, 24705, 27999, 46665, 83997, 139995, 419985]

約数ペア:

[(1, 419985), (3, 139995), (5, 83997), (9, 46665), (15, 27999), (17, 24705), (27, 15555), (45, 9333), (51, 8235), (61, 6885), (81, 5185), (85, 4941), (135, 3111), (153, 2745), (183, 2295), (255, 1647), (305, 1377), (405, 1037), (459, 915), (549, 765)]