319937968

素因数分解:

$2^4\times 7^1\times {\mathrm{139}}^1\times {\mathrm{20551}}^1$

素因数の和:20705

約数の個数: 40

約数和(自身を含む): 713565440

約数和(自身を除く): 393627472

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 139, 278, 556, 973, 1112, 1946, 2224, 3892, 7784, 15568, 20551, 41102, 82204, 143857, 164408, 287714, 328816, 575428, 1150856, 2301712, 2856589, 5713178, 11426356, 19996123, 22852712, 39992246, 45705424, 79984492, 159968984, 319937968]

約数ペア:

[(1, 319937968), (2, 159968984), (4, 79984492), (7, 45705424), (8, 39992246), (14, 22852712), (16, 19996123), (28, 11426356), (56, 5713178), (112, 2856589), (139, 2301712), (278, 1150856), (556, 575428), (973, 328816), (1112, 287714), (1946, 164408), (2224, 143857), (3892, 82204), (7784, 41102), (15568, 20551)]