28307072

素因数分解:

$2^7\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:233

約数の個数: 64

約数和(自身を含む): 59690400

約数和(自身を除く): 31383328

約数列:

[1, 2, 4, 8, 16, 32, 37, 43, 64, 74, 86, 128, 139, 148, 172, 278, 296, 344, 556, 592, 688, 1112, 1184, 1376, 1591, 2224, 2368, 2752, 3182, 4448, 4736, 5143, 5504, 5977, 6364, 8896, 10286, 11954, 12728, 17792, 20572, 23908, 25456, 41144, 47816, 50912, 82288, 95632, 101824, 164576, 191264, 203648, 221149, 329152, 382528, 442298, 658304, 765056, 884596, 1769192, 3538384, 7076768, 14153536, 28307072]

約数ペア:

[(1, 28307072), (2, 14153536), (4, 7076768), (8, 3538384), (16, 1769192), (32, 884596), (37, 765056), (43, 658304), (64, 442298), (74, 382528), (86, 329152), (128, 221149), (139, 203648), (148, 191264), (172, 164576), (278, 101824), (296, 95632), (344, 82288), (556, 50912), (592, 47816), (688, 41144), (1112, 25456), (1184, 23908), (1376, 20572), (1591, 17792), (2224, 12728), (2368, 11954), (2752, 10286), (3182, 8896), (4448, 6364), (4736, 5977), (5143, 5504)]