20302688

素因数分解:

$2^5\times 7^1\times {\mathrm{233}}^1\times {\mathrm{389}}^1$

素因数の和:639

約数の個数: 48

約数和(自身を含む): 45995040

約数和(自身を除く): 25692352

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 224, 233, 389, 466, 778, 932, 1556, 1631, 1864, 2723, 3112, 3262, 3728, 5446, 6224, 6524, 7456, 10892, 12448, 13048, 21784, 26096, 43568, 52192, 87136, 90637, 181274, 362548, 634459, 725096, 1268918, 1450192, 2537836, 2900384, 5075672, 10151344, 20302688]

約数ペア:

[(1, 20302688), (2, 10151344), (4, 5075672), (7, 2900384), (8, 2537836), (14, 1450192), (16, 1268918), (28, 725096), (32, 634459), (56, 362548), (112, 181274), (224, 90637), (233, 87136), (389, 52192), (466, 43568), (778, 26096), (932, 21784), (1556, 13048), (1631, 12448), (1864, 10892), (2723, 7456), (3112, 6524), (3262, 6224), (3728, 5446)]