81943840

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{46559}}^1$

素因数の和:46585

約数の個数: 48

約数和(自身を含む): 211196160

約数和(自身を除く): 129252320

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 880, 1760, 46559, 93118, 186236, 232795, 372472, 465590, 512149, 744944, 931180, 1024298, 1489888, 1862360, 2048596, 2560745, 3724720, 4097192, 5121490, 7449440, 8194384, 10242980, 16388768, 20485960, 40971920, 81943840]

約数ペア:

[(1, 81943840), (2, 40971920), (4, 20485960), (5, 16388768), (8, 10242980), (10, 8194384), (11, 7449440), (16, 5121490), (20, 4097192), (22, 3724720), (32, 2560745), (40, 2048596), (44, 1862360), (55, 1489888), (80, 1024298), (88, 931180), (110, 744944), (160, 512149), (176, 465590), (220, 372472), (352, 232795), (440, 186236), (880, 93118), (1760, 46559)]