25643120

素因数分解:

$2^4\times 5^1\times {\mathrm{320539}}^1$

素因数の和:320552

約数の個数: 20

約数和(自身を含む): 59620440

約数和(自身を除く): 33977320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 320539, 641078, 1282156, 1602695, 2564312, 3205390, 5128624, 6410780, 12821560, 25643120]

約数ペア:

[(1, 25643120), (2, 12821560), (4, 6410780), (5, 5128624), (8, 3205390), (10, 2564312), (16, 1602695), (20, 1282156), (40, 641078), (80, 320539)]