217419904

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{677}}^1$

素因数の和:897

約数の個数: 64

約数和(自身を含む): 469569240

約数和(自身を除く): 252149336

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 193, 208, 386, 416, 677, 772, 832, 1354, 1544, 1664, 2509, 2708, 3088, 5018, 5416, 6176, 8801, 10036, 10832, 12352, 17602, 20072, 21664, 24704, 35204, 40144, 43328, 70408, 80288, 86656, 130661, 140816, 160576, 261322, 281632, 321152, 522644, 563264, 1045288, 1126528, 1698593, 2090576, 3397186, 4181152, 6794372, 8362304, 13588744, 16724608, 27177488, 54354976, 108709952, 217419904]

約数ペア:

[(1, 217419904), (2, 108709952), (4, 54354976), (8, 27177488), (13, 16724608), (16, 13588744), (26, 8362304), (32, 6794372), (52, 4181152), (64, 3397186), (104, 2090576), (128, 1698593), (193, 1126528), (208, 1045288), (386, 563264), (416, 522644), (677, 321152), (772, 281632), (832, 261322), (1354, 160576), (1544, 140816), (1664, 130661), (2509, 86656), (2708, 80288), (3088, 70408), (5018, 43328), (5416, 40144), (6176, 35204), (8801, 24704), (10036, 21664), (10832, 20072), (12352, 17602)]