278851140

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{516391}}^1$

素因数の和:516409

約数の個数: 48

約数和(自身を含む): 867538560

約数和(自身を除く): 588687420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 516391, 1032782, 1549173, 2065564, 2581955, 3098346, 4647519, 5163910, 6196692, 7745865, 9295038, 10327820, 13942557, 15491730, 18590076, 23237595, 27885114, 30983460, 46475190, 55770228, 69712785, 92950380, 139425570, 278851140]

約数ペア:

[(1, 278851140), (2, 139425570), (3, 92950380), (4, 69712785), (5, 55770228), (6, 46475190), (9, 30983460), (10, 27885114), (12, 23237595), (15, 18590076), (18, 15491730), (20, 13942557), (27, 10327820), (30, 9295038), (36, 7745865), (45, 6196692), (54, 5163910), (60, 4647519), (90, 3098346), (108, 2581955), (135, 2065564), (180, 1549173), (270, 1032782), (540, 516391)]