1380780

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{2557}}^1$

素因数の和:2575

約数の個数: 48

約数和(自身を含む): 4297440

約数和(自身を除く): 2916660

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, 2557, 5114, 7671, 10228, 12785, 15342, 23013, 25570, 30684, 38355, 46026, 51140, 69039, 76710, 92052, 115065, 138078, 153420, 230130, 276156, 345195, 460260, 690390, 1380780]

約数ペア:

[(1, 1380780), (2, 690390), (3, 460260), (4, 345195), (5, 276156), (6, 230130), (9, 153420), (10, 138078), (12, 115065), (15, 92052), (18, 76710), (20, 69039), (27, 51140), (30, 46026), (36, 38355), (45, 30684), (54, 25570), (60, 23013), (90, 15342), (108, 12785), (135, 10228), (180, 7671), (270, 5114), (540, 2557)]