20546640

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{28537}}^1$

素因数の和:28556

約数の個数: 60

約数和(自身を含む): 69004884

約数和(自身を除く): 48458244

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 28537, 57074, 85611, 114148, 142685, 171222, 228296, 256833, 285370, 342444, 428055, 456592, 513666, 570740, 684888, 856110, 1027332, 1141480, 1284165, 1369776, 1712220, 2054664, 2282960, 2568330, 3424440, 4109328, 5136660, 6848880, 10273320, 20546640]

約数ペア:

[(1, 20546640), (2, 10273320), (3, 6848880), (4, 5136660), (5, 4109328), (6, 3424440), (8, 2568330), (9, 2282960), (10, 2054664), (12, 1712220), (15, 1369776), (16, 1284165), (18, 1141480), (20, 1027332), (24, 856110), (30, 684888), (36, 570740), (40, 513666), (45, 456592), (48, 428055), (60, 342444), (72, 285370), (80, 256833), (90, 228296), (120, 171222), (144, 142685), (180, 114148), (240, 85611), (360, 57074), (720, 28537)]