399491575

素因数分解:

$5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{211}}^1\times {\mathrm{349}}^1$

素因数の和:608

約数の個数: 48

約数和(自身を含む): 588851200

約数和(自身を除く): 189359625

約数列:

[1, 5, 7, 25, 31, 35, 155, 175, 211, 217, 349, 775, 1055, 1085, 1477, 1745, 2443, 5275, 5425, 6541, 7385, 8725, 10819, 12215, 32705, 36925, 45787, 54095, 61075, 73639, 75733, 163525, 228935, 270475, 368195, 378665, 515473, 1144675, 1840975, 1893325, 2282809, 2577365, 11414045, 12886825, 15979663, 57070225, 79898315, 399491575]

約数ペア:

[(1, 399491575), (5, 79898315), (7, 57070225), (25, 15979663), (31, 12886825), (35, 11414045), (155, 2577365), (175, 2282809), (211, 1893325), (217, 1840975), (349, 1144675), (775, 515473), (1055, 378665), (1085, 368195), (1477, 270475), (1745, 228935), (2443, 163525), (5275, 75733), (5425, 73639), (6541, 61075), (7385, 54095), (8725, 45787), (10819, 36925), (12215, 32705)]