28148480

素因数分解:

$2^8\times 5^1\times {\mathrm{21991}}^1$

素因数の和:22012

約数の個数: 36

約数和(自身を含む): 67427472

約数和(自身を除く): 39278992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 21991, 43982, 87964, 109955, 175928, 219910, 351856, 439820, 703712, 879640, 1407424, 1759280, 2814848, 3518560, 5629696, 7037120, 14074240, 28148480]

約数ペア:

[(1, 28148480), (2, 14074240), (4, 7037120), (5, 5629696), (8, 3518560), (10, 2814848), (16, 1759280), (20, 1407424), (32, 879640), (40, 703712), (64, 439820), (80, 351856), (128, 219910), (160, 175928), (256, 109955), (320, 87964), (640, 43982), (1280, 21991)]