12684800

素因数分解:

$2^9\times 5^2\times {\mathrm{991}}^1$

素因数の和:1019

約数の個数: 60

約数和(自身を含む): 31459296

約数和(自身を除く): 18774496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 400, 512, 640, 800, 991, 1280, 1600, 1982, 2560, 3200, 3964, 4955, 6400, 7928, 9910, 12800, 15856, 19820, 24775, 31712, 39640, 49550, 63424, 79280, 99100, 126848, 158560, 198200, 253696, 317120, 396400, 507392, 634240, 792800, 1268480, 1585600, 2536960, 3171200, 6342400, 12684800]

約数ペア:

[(1, 12684800), (2, 6342400), (4, 3171200), (5, 2536960), (8, 1585600), (10, 1268480), (16, 792800), (20, 634240), (25, 507392), (32, 396400), (40, 317120), (50, 253696), (64, 198200), (80, 158560), (100, 126848), (128, 99100), (160, 79280), (200, 63424), (256, 49550), (320, 39640), (400, 31712), (512, 24775), (640, 19820), (800, 15856), (991, 12800), (1280, 9910), (1600, 7928), (1982, 6400), (2560, 4955), (3200, 3964)]