20378176

素因数分解:

$2^6\times 7^1\times {\mathrm{13}}^1\times {\mathrm{3499}}^1$

素因数の和:3531

約数の個数: 56

約数和(自身を含む): 49784000

約数和(自身を除く): 29405824

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 91, 104, 112, 182, 208, 224, 364, 416, 448, 728, 832, 1456, 2912, 3499, 5824, 6998, 13996, 24493, 27992, 45487, 48986, 55984, 90974, 97972, 111968, 181948, 195944, 223936, 318409, 363896, 391888, 636818, 727792, 783776, 1273636, 1455584, 1567552, 2547272, 2911168, 5094544, 10189088, 20378176]

約数ペア:

[(1, 20378176), (2, 10189088), (4, 5094544), (7, 2911168), (8, 2547272), (13, 1567552), (14, 1455584), (16, 1273636), (26, 783776), (28, 727792), (32, 636818), (52, 391888), (56, 363896), (64, 318409), (91, 223936), (104, 195944), (112, 181948), (182, 111968), (208, 97972), (224, 90974), (364, 55984), (416, 48986), (448, 45487), (728, 27992), (832, 24493), (1456, 13996), (2912, 6998), (3499, 5824)]