78921470

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{3833}}^1$

素因数の和:3940

約数の個数: 32

約数和(自身を含む): 149065920

約数和(自身を除く): 70144450

約数列:

[1, 2, 5, 10, 29, 58, 71, 142, 145, 290, 355, 710, 2059, 3833, 4118, 7666, 10295, 19165, 20590, 38330, 111157, 222314, 272143, 544286, 555785, 1111570, 1360715, 2721430, 7892147, 15784294, 39460735, 78921470]

約数ペア:

[(1, 78921470), (2, 39460735), (5, 15784294), (10, 7892147), (29, 2721430), (58, 1360715), (71, 1111570), (142, 555785), (145, 544286), (290, 272143), (355, 222314), (710, 111157), (2059, 38330), (3833, 20590), (4118, 19165), (7666, 10295)]