20121219584

素因数分解:

$2^9\times {\mathrm{17}}^1\times {\mathrm{2311721}}^1$

素因数の和:2311756

約数の個数: 40

約数和(自身を含む): 42568048908

約数和(自身を除く): 22446829324

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 128, 136, 256, 272, 512, 544, 1088, 2176, 4352, 8704, 2311721, 4623442, 9246884, 18493768, 36987536, 39299257, 73975072, 78598514, 147950144, 157197028, 295900288, 314394056, 591800576, 628788112, 1183601152, 1257576224, 2515152448, 5030304896, 10060609792, 20121219584]

約数ペア:

[(1, 20121219584), (2, 10060609792), (4, 5030304896), (8, 2515152448), (16, 1257576224), (17, 1183601152), (32, 628788112), (34, 591800576), (64, 314394056), (68, 295900288), (128, 157197028), (136, 147950144), (256, 78598514), (272, 73975072), (512, 39299257), (544, 36987536), (1088, 18493768), (2176, 9246884), (4352, 4623442), (8704, 2311721)]