278987236

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1\times {\mathrm{967}}^1$

素因数の和:1144

約数の個数: 48

約数和(自身を含む): 546416640

約数和(自身を除く): 267429404

約数列:

[1, 2, 4, 11, 22, 44, 79, 83, 158, 166, 316, 332, 869, 913, 967, 1738, 1826, 1934, 3476, 3652, 3868, 6557, 10637, 13114, 21274, 26228, 42548, 72127, 76393, 80261, 144254, 152786, 160522, 288508, 305572, 321044, 840323, 882871, 1680646, 1765742, 3361292, 3531484, 6340619, 12681238, 25362476, 69746809, 139493618, 278987236]

約数ペア:

[(1, 278987236), (2, 139493618), (4, 69746809), (11, 25362476), (22, 12681238), (44, 6340619), (79, 3531484), (83, 3361292), (158, 1765742), (166, 1680646), (316, 882871), (332, 840323), (869, 321044), (913, 305572), (967, 288508), (1738, 160522), (1826, 152786), (1934, 144254), (3476, 80261), (3652, 76393), (3868, 72127), (6557, 42548), (10637, 26228), (13114, 21274)]