397758508

素因数分解:

$2^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{102199}}^1$

素因数の和:102349

約数の個数: 24

約数和(自身を含む): 801248000

約数和(自身を除く): 403489492

約数列:

[1, 2, 4, 7, 14, 28, 139, 278, 556, 973, 1946, 3892, 102199, 204398, 408796, 715393, 1430786, 2861572, 14205661, 28411322, 56822644, 99439627, 198879254, 397758508]

約数ペア:

[(1, 397758508), (2, 198879254), (4, 99439627), (7, 56822644), (14, 28411322), (28, 14205661), (139, 2861572), (278, 1430786), (556, 715393), (973, 408796), (1946, 204398), (3892, 102199)]