19437520

素因数分解:

$2^4\times 5^1\times {\mathrm{229}}^1\times {\mathrm{1061}}^1$

素因数の和:1303

約数の個数: 40

約数和(自身を含む): 45432360

約数和(自身を除く): 25994840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 229, 458, 916, 1061, 1145, 1832, 2122, 2290, 3664, 4244, 4580, 5305, 8488, 9160, 10610, 16976, 18320, 21220, 42440, 84880, 242969, 485938, 971876, 1214845, 1943752, 2429690, 3887504, 4859380, 9718760, 19437520]

約数ペア:

[(1, 19437520), (2, 9718760), (4, 4859380), (5, 3887504), (8, 2429690), (10, 1943752), (16, 1214845), (20, 971876), (40, 485938), (80, 242969), (229, 84880), (458, 42440), (916, 21220), (1061, 18320), (1145, 16976), (1832, 10610), (2122, 9160), (2290, 8488), (3664, 5305), (4244, 4580)]