217906688

素因数分解:

$2^9\times {\mathrm{31}}^1\times {\mathrm{13729}}^1$

素因数の和:13778

約数の個数: 40

約数和(自身を含む): 449465280

約数和(自身を除く): 231558592

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 256, 496, 512, 992, 1984, 3968, 7936, 13729, 15872, 27458, 54916, 109832, 219664, 425599, 439328, 851198, 878656, 1702396, 1757312, 3404792, 3514624, 6809584, 7029248, 13619168, 27238336, 54476672, 108953344, 217906688]

約数ペア:

[(1, 217906688), (2, 108953344), (4, 54476672), (8, 27238336), (16, 13619168), (31, 7029248), (32, 6809584), (62, 3514624), (64, 3404792), (124, 1757312), (128, 1702396), (248, 878656), (256, 851198), (496, 439328), (512, 425599), (992, 219664), (1984, 109832), (3968, 54916), (7936, 27458), (13729, 15872)]