1280520

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{3557}}^1$

素因数の和:3574

約数の個数: 48

約数和(自身を含む): 4162860

約数和(自身を除く): 2882340

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 3557, 7114, 10671, 14228, 17785, 21342, 28456, 32013, 35570, 42684, 53355, 64026, 71140, 85368, 106710, 128052, 142280, 160065, 213420, 256104, 320130, 426840, 640260, 1280520]

約数ペア:

[(1, 1280520), (2, 640260), (3, 426840), (4, 320130), (5, 256104), (6, 213420), (8, 160065), (9, 142280), (10, 128052), (12, 106710), (15, 85368), (18, 71140), (20, 64026), (24, 53355), (30, 42684), (36, 35570), (40, 32013), (45, 28456), (60, 21342), (72, 17785), (90, 14228), (120, 10671), (180, 7114), (360, 3557)]