25681280

素因数分解:

$2^7\times 5^1\times {\mathrm{40127}}^1$

素因数の和:40146

約数の個数: 32

約数和(自身を含む): 61395840

約数和(自身を除く): 35714560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 40127, 80254, 160508, 200635, 321016, 401270, 642032, 802540, 1284064, 1605080, 2568128, 3210160, 5136256, 6420320, 12840640, 25681280]

約数ペア:

[(1, 25681280), (2, 12840640), (4, 6420320), (5, 5136256), (8, 3210160), (10, 2568128), (16, 1605080), (20, 1284064), (32, 802540), (40, 642032), (64, 401270), (80, 321016), (128, 200635), (160, 160508), (320, 80254), (640, 40127)]