18954460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{135389}}^1$

素因数の和:135405

約数の個数: 24

約数和(自身を含む): 45491040

約数和(自身を除く): 26536580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 135389, 270778, 541556, 676945, 947723, 1353890, 1895446, 2707780, 3790892, 4738615, 9477230, 18954460]

約数ペア:

[(1, 18954460), (2, 9477230), (4, 4738615), (5, 3790892), (7, 2707780), (10, 1895446), (14, 1353890), (20, 947723), (28, 676945), (35, 541556), (70, 270778), (140, 135389)]