393254420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1512517}}^1$

素因数の和:1512539

約数の個数: 24

約数和(自身を含む): 889360584

約数和(自身を除く): 496106164

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1512517, 3025034, 6050068, 7562585, 15125170, 19662721, 30250340, 39325442, 78650884, 98313605, 196627210, 393254420]

約数ペア:

[(1, 393254420), (2, 196627210), (4, 98313605), (5, 78650884), (10, 39325442), (13, 30250340), (20, 19662721), (26, 15125170), (52, 7562585), (65, 6050068), (130, 3025034), (260, 1512517)]