397907860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2842199}}^1$

素因数の和:2842215

約数の個数: 24

約数和(自身を含む): 954979200

約数和(自身を除く): 557071340

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2842199, 5684398, 11368796, 14210995, 19895393, 28421990, 39790786, 56843980, 79581572, 99476965, 198953930, 397907860]

約数ペア:

[(1, 397907860), (2, 198953930), (4, 99476965), (5, 79581572), (7, 56843980), (10, 39790786), (14, 28421990), (20, 19895393), (28, 14210995), (35, 11368796), (70, 5684398), (140, 2842199)]