218656144

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{887}}^1$

素因数の和:1004

約数の個数: 80

約数和(自身を含む): 507396096

約数和(自身を除く): 288739952

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 62, 71, 112, 124, 142, 217, 248, 284, 434, 496, 497, 568, 868, 887, 994, 1136, 1736, 1774, 1988, 2201, 3472, 3548, 3976, 4402, 6209, 7096, 7952, 8804, 12418, 14192, 15407, 17608, 24836, 27497, 30814, 35216, 49672, 54994, 61628, 62977, 99344, 109988, 123256, 125954, 192479, 219976, 246512, 251908, 384958, 439952, 440839, 503816, 769916, 881678, 1007632, 1539832, 1763356, 1952287, 3079664, 3526712, 3904574, 7053424, 7809148, 13666009, 15618296, 27332018, 31236592, 54664036, 109328072, 218656144]

約数ペア:

[(1, 218656144), (2, 109328072), (4, 54664036), (7, 31236592), (8, 27332018), (14, 15618296), (16, 13666009), (28, 7809148), (31, 7053424), (56, 3904574), (62, 3526712), (71, 3079664), (112, 1952287), (124, 1763356), (142, 1539832), (217, 1007632), (248, 881678), (284, 769916), (434, 503816), (496, 440839), (497, 439952), (568, 384958), (868, 251908), (887, 246512), (994, 219976), (1136, 192479), (1736, 125954), (1774, 123256), (1988, 109988), (2201, 99344), (3472, 62977), (3548, 61628), (3976, 54994), (4402, 49672), (6209, 35216), (7096, 30814), (7952, 27497), (8804, 24836), (12418, 17608), (14192, 15407)]