280238454

素因数分解:

$2^1\times 3^4\times {\mathrm{53}}^1\times {\mathrm{127}}^1\times {\mathrm{257}}^1$

素因数の和:451

約数の個数: 80

約数和(自身を含む): 647336448

約数和(自身を除く): 367097994

約数列:

[1, 2, 3, 6, 9, 18, 27, 53, 54, 81, 106, 127, 159, 162, 254, 257, 318, 381, 477, 514, 762, 771, 954, 1143, 1431, 1542, 2286, 2313, 2862, 3429, 4293, 4626, 6731, 6858, 6939, 8586, 10287, 13462, 13621, 13878, 20193, 20574, 20817, 27242, 32639, 40386, 40863, 41634, 60579, 65278, 81726, 97917, 121158, 122589, 181737, 195834, 245178, 293751, 363474, 367767, 545211, 587502, 735534, 881253, 1090422, 1103301, 1729867, 1762506, 2206602, 2643759, 3459734, 5189601, 5287518, 10379202, 15568803, 31137606, 46706409, 93412818, 140119227, 280238454]

約数ペア:

[(1, 280238454), (2, 140119227), (3, 93412818), (6, 46706409), (9, 31137606), (18, 15568803), (27, 10379202), (53, 5287518), (54, 5189601), (81, 3459734), (106, 2643759), (127, 2206602), (159, 1762506), (162, 1729867), (254, 1103301), (257, 1090422), (318, 881253), (381, 735534), (477, 587502), (514, 545211), (762, 367767), (771, 363474), (954, 293751), (1143, 245178), (1431, 195834), (1542, 181737), (2286, 122589), (2313, 121158), (2862, 97917), (3429, 81726), (4293, 65278), (4626, 60579), (6731, 41634), (6858, 40863), (6939, 40386), (8586, 32639), (10287, 27242), (13462, 20817), (13621, 20574), (13878, 20193)]