278017380

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{514847}}^1$

素因数の和:514865

約数の個数: 48

約数和(自身を含む): 864944640

約数和(自身を除く): 586927260

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, 514847, 1029694, 1544541, 2059388, 2574235, 3089082, 4633623, 5148470, 6178164, 7722705, 9267246, 10296940, 13900869, 15445410, 18534492, 23168115, 27801738, 30890820, 46336230, 55603476, 69504345, 92672460, 139008690, 278017380]

約数ペア:

[(1, 278017380), (2, 139008690), (3, 92672460), (4, 69504345), (5, 55603476), (6, 46336230), (9, 30890820), (10, 27801738), (12, 23168115), (15, 18534492), (18, 15445410), (20, 13900869), (27, 10296940), (30, 9267246), (36, 7722705), (45, 6178164), (54, 5148470), (60, 4633623), (90, 3089082), (108, 2574235), (135, 2059388), (180, 1544541), (270, 1029694), (540, 514847)]