20323856

素因数分解:

$2^4\times 7^1\times {\mathrm{79}}^1\times {\mathrm{2297}}^1$

素因数の和:2391

約数の個数: 40

約数和(自身を含む): 45592320

約数和(自身を除く): 25268464

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 79, 112, 158, 316, 553, 632, 1106, 1264, 2212, 2297, 4424, 4594, 8848, 9188, 16079, 18376, 32158, 36752, 64316, 128632, 181463, 257264, 362926, 725852, 1270241, 1451704, 2540482, 2903408, 5080964, 10161928, 20323856]

約数ペア:

[(1, 20323856), (2, 10161928), (4, 5080964), (7, 2903408), (8, 2540482), (14, 1451704), (16, 1270241), (28, 725852), (56, 362926), (79, 257264), (112, 181463), (158, 128632), (316, 64316), (553, 36752), (632, 32158), (1106, 18376), (1264, 16079), (2212, 9188), (2297, 8848), (4424, 4594)]