349717840

素因数分解:

$2^4\times 5^1\times {\mathrm{4371473}}^1$

素因数の和:4371486

約数の個数: 20

約数和(自身を含む): 813094164

約数和(自身を除く): 463376324

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4371473, 8742946, 17485892, 21857365, 34971784, 43714730, 69943568, 87429460, 174858920, 349717840]

約数ペア:

[(1, 349717840), (2, 174858920), (4, 87429460), (5, 69943568), (8, 43714730), (10, 34971784), (16, 21857365), (20, 17485892), (40, 8742946), (80, 4371473)]