25131880

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{16981}}^1$

素因数の和:17029

約数の個数: 32

約数和(自身を含む): 58078440

約数和(自身を除く): 32946560

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 16981, 33962, 67924, 84905, 135848, 169810, 339620, 628297, 679240, 1256594, 2513188, 3141485, 5026376, 6282970, 12565940, 25131880]

約数ペア:

[(1, 25131880), (2, 12565940), (4, 6282970), (5, 5026376), (8, 3141485), (10, 2513188), (20, 1256594), (37, 679240), (40, 628297), (74, 339620), (148, 169810), (185, 135848), (296, 84905), (370, 67924), (740, 33962), (1480, 16981)]