280478874

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{189257}}^1$

素因数の和:189294

約数の個数: 32

約数和(自身を含む): 635906880

約数和(自身を除く): 355428006

約数列:

[1, 2, 3, 6, 13, 19, 26, 38, 39, 57, 78, 114, 247, 494, 741, 1482, 189257, 378514, 567771, 1135542, 2460341, 3595883, 4920682, 7191766, 7381023, 10787649, 14762046, 21575298, 46746479, 93492958, 140239437, 280478874]

約数ペア:

[(1, 280478874), (2, 140239437), (3, 93492958), (6, 46746479), (13, 21575298), (19, 14762046), (26, 10787649), (38, 7381023), (39, 7191766), (57, 4920682), (78, 3595883), (114, 2460341), (247, 1135542), (494, 567771), (741, 378514), (1482, 189257)]