63904000

素因数分解:

$2^8\times 5^3\times {\mathrm{1997}}^1$

素因数の和:2028

約数の個数: 72

約数和(自身を含む): 159272568

約数和(自身を除く): 95368568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 256, 320, 400, 500, 640, 800, 1000, 1280, 1600, 1997, 2000, 3200, 3994, 4000, 6400, 7988, 8000, 9985, 15976, 16000, 19970, 31952, 32000, 39940, 49925, 63904, 79880, 99850, 127808, 159760, 199700, 249625, 255616, 319520, 399400, 499250, 511232, 639040, 798800, 998500, 1278080, 1597600, 1997000, 2556160, 3195200, 3994000, 6390400, 7988000, 12780800, 15976000, 31952000, 63904000]

約数ペア:

[(1, 63904000), (2, 31952000), (4, 15976000), (5, 12780800), (8, 7988000), (10, 6390400), (16, 3994000), (20, 3195200), (25, 2556160), (32, 1997000), (40, 1597600), (50, 1278080), (64, 998500), (80, 798800), (100, 639040), (125, 511232), (128, 499250), (160, 399400), (200, 319520), (250, 255616), (256, 249625), (320, 199700), (400, 159760), (500, 127808), (640, 99850), (800, 79880), (1000, 63904), (1280, 49925), (1600, 39940), (1997, 32000), (2000, 31952), (3200, 19970), (3994, 16000), (4000, 15976), (6400, 9985), (7988, 8000)]