15856000

素因数分解:

$2^7\times 5^3\times {\mathrm{991}}^1$

素因数の和:1020

約数の個数: 64

約数和(自身を含む): 39461760

約数和(自身を除く): 23605760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 320, 400, 500, 640, 800, 991, 1000, 1600, 1982, 2000, 3200, 3964, 4000, 4955, 7928, 8000, 9910, 15856, 16000, 19820, 24775, 31712, 39640, 49550, 63424, 79280, 99100, 123875, 126848, 158560, 198200, 247750, 317120, 396400, 495500, 634240, 792800, 991000, 1585600, 1982000, 3171200, 3964000, 7928000, 15856000]

約数ペア:

[(1, 15856000), (2, 7928000), (4, 3964000), (5, 3171200), (8, 1982000), (10, 1585600), (16, 991000), (20, 792800), (25, 634240), (32, 495500), (40, 396400), (50, 317120), (64, 247750), (80, 198200), (100, 158560), (125, 126848), (128, 123875), (160, 99100), (200, 79280), (250, 63424), (320, 49550), (400, 39640), (500, 31712), (640, 24775), (800, 19820), (991, 16000), (1000, 15856), (1600, 9910), (1982, 8000), (2000, 7928), (3200, 4955), (3964, 4000)]