78816218

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{1549}}^1$

素因数の和:1686

約数の個数: 32

約数和(自身を含む): 135408000

約数和(自身を除く): 56591782

約数列:

[1, 2, 13, 19, 26, 38, 103, 206, 247, 494, 1339, 1549, 1957, 2678, 3098, 3914, 20137, 25441, 29431, 40274, 50882, 58862, 159547, 319094, 382603, 765206, 2074111, 3031393, 4148222, 6062786, 39408109, 78816218]

約数ペア:

[(1, 78816218), (2, 39408109), (13, 6062786), (19, 4148222), (26, 3031393), (38, 2074111), (103, 765206), (206, 382603), (247, 319094), (494, 159547), (1339, 58862), (1549, 50882), (1957, 40274), (2678, 29431), (3098, 25441), (3914, 20137)]