20790784

素因数分解:

$2^9\times 7^1\times {\mathrm{5801}}^1$

素因数の和:5826

約数の個数: 40

約数和(自身を含む): 47483568

約数和(自身を除く): 26692784

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 512, 896, 1792, 3584, 5801, 11602, 23204, 40607, 46408, 81214, 92816, 162428, 185632, 324856, 371264, 649712, 742528, 1299424, 1485056, 2598848, 2970112, 5197696, 10395392, 20790784]

約数ペア:

[(1, 20790784), (2, 10395392), (4, 5197696), (7, 2970112), (8, 2598848), (14, 1485056), (16, 1299424), (28, 742528), (32, 649712), (56, 371264), (64, 324856), (112, 185632), (128, 162428), (224, 92816), (256, 81214), (448, 46408), (512, 40607), (896, 23204), (1792, 11602), (3584, 5801)]