129715220

素因数分解:

$2^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{23081}}^1$

素因数の和:23371

約数の個数: 24

約数和(自身を含む): 273383208

約数和(自身を除く): 143667988

約数列:

[1, 2, 4, 5, 10, 20, 281, 562, 1124, 1405, 2810, 5620, 23081, 46162, 92324, 115405, 230810, 461620, 6485761, 12971522, 25943044, 32428805, 64857610, 129715220]

約数ペア:

[(1, 129715220), (2, 64857610), (4, 32428805), (5, 25943044), (10, 12971522), (20, 6485761), (281, 461620), (562, 230810), (1124, 115405), (1405, 92324), (2810, 46162), (5620, 23081)]