30872120

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{3461}}^1$

素因数の和:3695

約数の個数: 32

約数和(自身を含む): 69793920

約数和(自身を除く): 38921800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 446, 892, 1115, 1784, 2230, 3461, 4460, 6922, 8920, 13844, 17305, 27688, 34610, 69220, 138440, 771803, 1543606, 3087212, 3859015, 6174424, 7718030, 15436060, 30872120]

約数ペア:

[(1, 30872120), (2, 15436060), (4, 7718030), (5, 6174424), (8, 3859015), (10, 3087212), (20, 1543606), (40, 771803), (223, 138440), (446, 69220), (892, 34610), (1115, 27688), (1784, 17305), (2230, 13844), (3461, 8920), (4460, 6922)]