20757616

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{1999}}^1$

素因数の和:2077

約数の個数: 40

約数和(自身を含む): 44640000

約数和(自身を除く): 23882384

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 59, 88, 118, 176, 236, 472, 649, 944, 1298, 1999, 2596, 3998, 5192, 7996, 10384, 15992, 21989, 31984, 43978, 87956, 117941, 175912, 235882, 351824, 471764, 943528, 1297351, 1887056, 2594702, 5189404, 10378808, 20757616]

約数ペア:

[(1, 20757616), (2, 10378808), (4, 5189404), (8, 2594702), (11, 1887056), (16, 1297351), (22, 943528), (44, 471764), (59, 351824), (88, 235882), (118, 175912), (176, 117941), (236, 87956), (472, 43978), (649, 31984), (944, 21989), (1298, 15992), (1999, 10384), (2596, 7996), (3998, 5192)]