280973368

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{142193}}^1$

素因数の和:142231

約数の個数: 32

約数和(自身を含む): 597214800

約数和(自身を除く): 316241432

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 142193, 284386, 568772, 1137544, 1848509, 2701667, 3697018, 5403334, 7394036, 10806668, 14788072, 21613336, 35121671, 70243342, 140486684, 280973368]

約数ペア:

[(1, 280973368), (2, 140486684), (4, 70243342), (8, 35121671), (13, 21613336), (19, 14788072), (26, 10806668), (38, 7394036), (52, 5403334), (76, 3697018), (104, 2701667), (152, 1848509), (247, 1137544), (494, 568772), (988, 284386), (1976, 142193)]