20905008

素因数分解:

$2^4\times 3^1\times {\mathrm{457}}^1\times {\mathrm{953}}^1$

素因数の和:1421

約数の個数: 40

約数和(自身を含む): 54179568

約数和(自身を除く): 33274560

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 457, 914, 953, 1371, 1828, 1906, 2742, 2859, 3656, 3812, 5484, 5718, 7312, 7624, 10968, 11436, 15248, 21936, 22872, 45744, 435521, 871042, 1306563, 1742084, 2613126, 3484168, 5226252, 6968336, 10452504, 20905008]

約数ペア:

[(1, 20905008), (2, 10452504), (3, 6968336), (4, 5226252), (6, 3484168), (8, 2613126), (12, 1742084), (16, 1306563), (24, 871042), (48, 435521), (457, 45744), (914, 22872), (953, 21936), (1371, 15248), (1828, 11436), (1906, 10968), (2742, 7624), (2859, 7312), (3656, 5718), (3812, 5484)]