28578082180

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{137}}^1\times {\mathrm{155671}}^1$

素因数の和:155884

約数の個数: 48

約数和(自身を含む): 61354694016

約数和(自身を除く): 32776611836

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 137, 268, 274, 335, 548, 670, 685, 1340, 1370, 2740, 9179, 18358, 36716, 45895, 91790, 155671, 183580, 311342, 622684, 778355, 1556710, 3113420, 10429957, 20859914, 21326927, 41719828, 42653854, 52149785, 85307708, 104299570, 106634635, 208599140, 213269270, 426538540, 1428904109, 2857808218, 5715616436, 7144520545, 14289041090, 28578082180]

約数ペア:

[(1, 28578082180), (2, 14289041090), (4, 7144520545), (5, 5715616436), (10, 2857808218), (20, 1428904109), (67, 426538540), (134, 213269270), (137, 208599140), (268, 106634635), (274, 104299570), (335, 85307708), (548, 52149785), (670, 42653854), (685, 41719828), (1340, 21326927), (1370, 20859914), (2740, 10429957), (9179, 3113420), (18358, 1556710), (36716, 778355), (45895, 622684), (91790, 311342), (155671, 183580)]