25345280

素因数分解:

$2^8\times 5^1\times {\mathrm{19801}}^1$

素因数の和:19822

約数の個数: 36

約数和(自身を含む): 60712932

約数和(自身を除く): 35367652

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 19801, 39602, 79204, 99005, 158408, 198010, 316816, 396020, 633632, 792040, 1267264, 1584080, 2534528, 3168160, 5069056, 6336320, 12672640, 25345280]

約数ペア:

[(1, 25345280), (2, 12672640), (4, 6336320), (5, 5069056), (8, 3168160), (10, 2534528), (16, 1584080), (20, 1267264), (32, 792040), (40, 633632), (64, 396020), (80, 316816), (128, 198010), (160, 158408), (256, 99005), (320, 79204), (640, 39602), (1280, 19801)]