65385220

素因数分解:

$2^2\times 5^1\times {\mathrm{1657}}^1\times {\mathrm{1973}}^1$

素因数の和:3639

約数の個数: 24

約数和(自身を含む): 137461464

約数和(自身を除く): 72076244

約数列:

[1, 2, 4, 5, 10, 20, 1657, 1973, 3314, 3946, 6628, 7892, 8285, 9865, 16570, 19730, 33140, 39460, 3269261, 6538522, 13077044, 16346305, 32692610, 65385220]

約数ペア:

[(1, 65385220), (2, 32692610), (4, 16346305), (5, 13077044), (10, 6538522), (20, 3269261), (1657, 39460), (1973, 33140), (3314, 19730), (3946, 16570), (6628, 9865), (7892, 8285)]