81651968

素因数分解:

$2^8\times {\mathrm{19}}^1\times {\mathrm{16787}}^1$

素因数の和:16822

約数の個数: 36

約数和(自身を含む): 171573360

約数和(自身を除く): 89921392

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 256, 304, 608, 1216, 2432, 4864, 16787, 33574, 67148, 134296, 268592, 318953, 537184, 637906, 1074368, 1275812, 2148736, 2551624, 4297472, 5103248, 10206496, 20412992, 40825984, 81651968]

約数ペア:

[(1, 81651968), (2, 40825984), (4, 20412992), (8, 10206496), (16, 5103248), (19, 4297472), (32, 2551624), (38, 2148736), (64, 1275812), (76, 1074368), (128, 637906), (152, 537184), (256, 318953), (304, 268592), (608, 134296), (1216, 67148), (2432, 33574), (4864, 16787)]