20762640

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{28837}}^1$

素因数の和:28856

約数の個数: 60

約数和(自身を含む): 69730284

約数和(自身を除く): 48967644

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, 28837, 57674, 86511, 115348, 144185, 173022, 230696, 259533, 288370, 346044, 432555, 461392, 519066, 576740, 692088, 865110, 1038132, 1153480, 1297665, 1384176, 1730220, 2076264, 2306960, 2595330, 3460440, 4152528, 5190660, 6920880, 10381320, 20762640]

約数ペア:

[(1, 20762640), (2, 10381320), (3, 6920880), (4, 5190660), (5, 4152528), (6, 3460440), (8, 2595330), (9, 2306960), (10, 2076264), (12, 1730220), (15, 1384176), (16, 1297665), (18, 1153480), (20, 1038132), (24, 865110), (30, 692088), (36, 576740), (40, 519066), (45, 461392), (48, 432555), (60, 346044), (72, 288370), (80, 259533), (90, 230696), (120, 173022), (144, 144185), (180, 115348), (240, 86511), (360, 57674), (720, 28837)]