139830015

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{42181}}^1$

素因数の和:42219

約数の個数: 32

約数和(自身を含む): 255116736

約数和(自身を除く): 115286721

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 85, 195, 221, 255, 663, 1105, 3315, 42181, 126543, 210905, 548353, 632715, 717077, 1645059, 2151231, 2741765, 3585385, 8225295, 9322001, 10756155, 27966003, 46610005, 139830015]

約数ペア:

[(1, 139830015), (3, 46610005), (5, 27966003), (13, 10756155), (15, 9322001), (17, 8225295), (39, 3585385), (51, 2741765), (65, 2151231), (85, 1645059), (195, 717077), (221, 632715), (255, 548353), (663, 210905), (1105, 126543), (3315, 42181)]