12720352

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{349}}^1$

素因数の和:443

約数の個数: 48

約数和(自身を含む): 26989200

約数和(自身を除く): 14268848

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 67, 68, 134, 136, 268, 272, 349, 536, 544, 698, 1072, 1139, 1396, 2144, 2278, 2792, 4556, 5584, 5933, 9112, 11168, 11866, 18224, 23383, 23732, 36448, 46766, 47464, 93532, 94928, 187064, 189856, 374128, 397511, 748256, 795022, 1590044, 3180088, 6360176, 12720352]

約数ペア:

[(1, 12720352), (2, 6360176), (4, 3180088), (8, 1590044), (16, 795022), (17, 748256), (32, 397511), (34, 374128), (67, 189856), (68, 187064), (134, 94928), (136, 93532), (268, 47464), (272, 46766), (349, 36448), (536, 23732), (544, 23383), (698, 18224), (1072, 11866), (1139, 11168), (1396, 9112), (2144, 5933), (2278, 5584), (2792, 4556)]