16400680

素因数分解:

$2^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{1559}}^1$

素因数の和:1833

約数の個数: 32

約数和(自身を含む): 37065600

約数和(自身を除く): 20664920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 263, 526, 1052, 1315, 1559, 2104, 2630, 3118, 5260, 6236, 7795, 10520, 12472, 15590, 31180, 62360, 410017, 820034, 1640068, 2050085, 3280136, 4100170, 8200340, 16400680]

約数ペア:

[(1, 16400680), (2, 8200340), (4, 4100170), (5, 3280136), (8, 2050085), (10, 1640068), (20, 820034), (40, 410017), (263, 62360), (526, 31180), (1052, 15590), (1315, 12472), (1559, 10520), (2104, 7795), (2630, 6236), (3118, 5260)]