42549580

素因数分解:

$2^2\times 5^1\times {\mathrm{641}}^1\times {\mathrm{3319}}^1$

素因数の和:3969

約数の個数: 24

約数和(自身を含む): 89520480

約数和(自身を除く): 46970900

約数列:

[1, 2, 4, 5, 10, 20, 641, 1282, 2564, 3205, 3319, 6410, 6638, 12820, 13276, 16595, 33190, 66380, 2127479, 4254958, 8509916, 10637395, 21274790, 42549580]

約数ペア:

[(1, 42549580), (2, 21274790), (4, 10637395), (5, 8509916), (10, 4254958), (20, 2127479), (641, 66380), (1282, 33190), (2564, 16595), (3205, 13276), (3319, 12820), (6410, 6638)]