39890816

素因数分解:

$2^7\times 7^1\times {\mathrm{211}}^2$

素因数の和:443

約数の個数: 48

約数和(自身を含む): 91255320

約数和(自身を除く): 51364504

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 211, 224, 422, 448, 844, 896, 1477, 1688, 2954, 3376, 5908, 6752, 11816, 13504, 23632, 27008, 44521, 47264, 89042, 94528, 178084, 189056, 311647, 356168, 623294, 712336, 1246588, 1424672, 2493176, 2849344, 4986352, 5698688, 9972704, 19945408, 39890816]

約数ペア:

[(1, 39890816), (2, 19945408), (4, 9972704), (7, 5698688), (8, 4986352), (14, 2849344), (16, 2493176), (28, 1424672), (32, 1246588), (56, 712336), (64, 623294), (112, 356168), (128, 311647), (211, 189056), (224, 178084), (422, 94528), (448, 89042), (844, 47264), (896, 44521), (1477, 27008), (1688, 23632), (2954, 13504), (3376, 11816), (5908, 6752)]