25366480

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{2909}}^1$

素因数の和:3031

約数の個数: 40

約数和(自身を含む): 59538600

約数和(自身を除く): 34172120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 2909, 4360, 5818, 8720, 11636, 14545, 23272, 29090, 46544, 58180, 116360, 232720, 317081, 634162, 1268324, 1585405, 2536648, 3170810, 5073296, 6341620, 12683240, 25366480]

約数ペア:

[(1, 25366480), (2, 12683240), (4, 6341620), (5, 5073296), (8, 3170810), (10, 2536648), (16, 1585405), (20, 1268324), (40, 634162), (80, 317081), (109, 232720), (218, 116360), (436, 58180), (545, 46544), (872, 29090), (1090, 23272), (1744, 14545), (2180, 11636), (2909, 8720), (4360, 5818)]