26580980

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{18719}}^1$

素因数の和:18799

約数の個数: 24

約数和(自身を含む): 56609280

約数和(自身を除く): 30028300

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 18719, 37438, 74876, 93595, 187190, 374380, 1329049, 2658098, 5316196, 6645245, 13290490, 26580980]

約数ペア:

[(1, 26580980), (2, 13290490), (4, 6645245), (5, 5316196), (10, 2658098), (20, 1329049), (71, 374380), (142, 187190), (284, 93595), (355, 74876), (710, 37438), (1420, 18719)]