61619860

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{523}}^1$

素因数の和:712

約数の個数: 48

約数和(自身を含む): 133632576

約数和(自身を除く): 72012716

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 137, 172, 215, 274, 430, 523, 548, 685, 860, 1046, 1370, 2092, 2615, 2740, 5230, 5891, 10460, 11782, 22489, 23564, 29455, 44978, 58910, 71651, 89956, 112445, 117820, 143302, 224890, 286604, 358255, 449780, 716510, 1433020, 3080993, 6161986, 12323972, 15404965, 30809930, 61619860]

約数ペア:

[(1, 61619860), (2, 30809930), (4, 15404965), (5, 12323972), (10, 6161986), (20, 3080993), (43, 1433020), (86, 716510), (137, 449780), (172, 358255), (215, 286604), (274, 224890), (430, 143302), (523, 117820), (548, 112445), (685, 89956), (860, 71651), (1046, 58910), (1370, 44978), (2092, 29455), (2615, 23564), (2740, 22489), (5230, 11782), (5891, 10460)]