389156940

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{720661}}^1$

素因数の和:720679

約数の個数: 48

約数和(自身を含む): 1210712160

約数和(自身を除く): 821555220

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, 720661, 1441322, 2161983, 2882644, 3603305, 4323966, 6485949, 7206610, 8647932, 10809915, 12971898, 14413220, 19457847, 21619830, 25943796, 32429745, 38915694, 43239660, 64859490, 77831388, 97289235, 129718980, 194578470, 389156940]

約数ペア:

[(1, 389156940), (2, 194578470), (3, 129718980), (4, 97289235), (5, 77831388), (6, 64859490), (9, 43239660), (10, 38915694), (12, 32429745), (15, 25943796), (18, 21619830), (20, 19457847), (27, 14413220), (30, 12971898), (36, 10809915), (45, 8647932), (54, 7206610), (60, 6485949), (90, 4323966), (108, 3603305), (135, 2882644), (180, 2161983), (270, 1441322), (540, 720661)]