78236428

素因数分解:

$2^2\times {\mathrm{139}}^1\times {\mathrm{223}}^1\times {\mathrm{631}}^1$

素因数の和:997

約数の個数: 24

約数和(自身を含む): 138736640

約数和(自身を除く): 60500212

約数列:

[1, 2, 4, 139, 223, 278, 446, 556, 631, 892, 1262, 2524, 30997, 61994, 87709, 123988, 140713, 175418, 281426, 350836, 562852, 19559107, 39118214, 78236428]

約数ペア:

[(1, 78236428), (2, 39118214), (4, 19559107), (139, 562852), (223, 350836), (278, 281426), (446, 175418), (556, 140713), (631, 123988), (892, 87709), (1262, 61994), (2524, 30997)]