18815860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{134399}}^1$

素因数の和:134415

約数の個数: 24

約数和(自身を含む): 45158400

約数和(自身を除く): 26342540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 134399, 268798, 537596, 671995, 940793, 1343990, 1881586, 2687980, 3763172, 4703965, 9407930, 18815860]

約数ペア:

[(1, 18815860), (2, 9407930), (4, 4703965), (5, 3763172), (7, 2687980), (10, 1881586), (14, 1343990), (20, 940793), (28, 671995), (35, 537596), (70, 268798), (140, 134399)]