20906032

素因数分解:

$2^4\times 7^1\times {\mathrm{73}}^1\times {\mathrm{2557}}^1$

素因数の和:2645

約数の個数: 40

約数和(自身を含む): 46944416

約数和(自身を除く): 26038384

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 73, 112, 146, 292, 511, 584, 1022, 1168, 2044, 2557, 4088, 5114, 8176, 10228, 17899, 20456, 35798, 40912, 71596, 143192, 186661, 286384, 373322, 746644, 1306627, 1493288, 2613254, 2986576, 5226508, 10453016, 20906032]

約数ペア:

[(1, 20906032), (2, 10453016), (4, 5226508), (7, 2986576), (8, 2613254), (14, 1493288), (16, 1306627), (28, 746644), (56, 373322), (73, 286384), (112, 186661), (146, 143192), (292, 71596), (511, 40912), (584, 35798), (1022, 20456), (1168, 17899), (2044, 10228), (2557, 8176), (4088, 5114)]