138037540

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{43961}}^1$

素因数の和:44127

約数の個数: 24

約数和(自身を含む): 291731832

約数和(自身を除く): 153694292

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 43961, 87922, 175844, 219805, 439610, 879220, 6901877, 13803754, 27607508, 34509385, 69018770, 138037540]

約数ペア:

[(1, 138037540), (2, 69018770), (4, 34509385), (5, 27607508), (10, 13803754), (20, 6901877), (157, 879220), (314, 439610), (628, 219805), (785, 175844), (1570, 87922), (3140, 43961)]