31034420

素因数分解:

$2^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{3989}}^1$

素因数の和:4387

約数の個数: 24

約数和(自身を含む): 65356200

約数和(自身を除く): 34321780

約数列:

[1, 2, 4, 5, 10, 20, 389, 778, 1556, 1945, 3890, 3989, 7780, 7978, 15956, 19945, 39890, 79780, 1551721, 3103442, 6206884, 7758605, 15517210, 31034420]

約数ペア:

[(1, 31034420), (2, 15517210), (4, 7758605), (5, 6206884), (10, 3103442), (20, 1551721), (389, 79780), (778, 39890), (1556, 19945), (1945, 15956), (3890, 7978), (3989, 7780)]