251168255

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{1193}}^1$

素因数の和:1331

約数の個数: 32

約数和(自身を含む): 336994560

約数和(自身を除く): 85826305

約数列:

[1, 5, 13, 41, 65, 79, 205, 395, 533, 1027, 1193, 2665, 3239, 5135, 5965, 15509, 16195, 42107, 48913, 77545, 94247, 210535, 244565, 471235, 635869, 1225211, 3179345, 3864127, 6126055, 19320635, 50233651, 251168255]

約数ペア:

[(1, 251168255), (5, 50233651), (13, 19320635), (41, 6126055), (65, 3864127), (79, 3179345), (205, 1225211), (395, 635869), (533, 471235), (1027, 244565), (1193, 210535), (2665, 94247), (3239, 77545), (5135, 48913), (5965, 42107), (15509, 16195)]