61774660

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{659}}^1$

素因数の和:820

約数の個数: 48

約数和(自身を含む): 134164800

約数和(自身を除く): 72390140

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 109, 172, 215, 218, 430, 436, 545, 659, 860, 1090, 1318, 2180, 2636, 3295, 4687, 6590, 9374, 13180, 18748, 23435, 28337, 46870, 56674, 71831, 93740, 113348, 141685, 143662, 283370, 287324, 359155, 566740, 718310, 1436620, 3088733, 6177466, 12354932, 15443665, 30887330, 61774660]

約数ペア:

[(1, 61774660), (2, 30887330), (4, 15443665), (5, 12354932), (10, 6177466), (20, 3088733), (43, 1436620), (86, 718310), (109, 566740), (172, 359155), (215, 287324), (218, 283370), (430, 143662), (436, 141685), (545, 113348), (659, 93740), (860, 71831), (1090, 56674), (1318, 46870), (2180, 28337), (2636, 23435), (3295, 18748), (4687, 13180), (6590, 9374)]