28068015

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{491}}^1$

素因数の和:639

約数の個数: 32

約数和(自身を含む): 46665216

約数和(自身を除く): 18597201

約数列:

[1, 3, 5, 15, 37, 103, 111, 185, 309, 491, 515, 555, 1473, 1545, 2455, 3811, 7365, 11433, 18167, 19055, 50573, 54501, 57165, 90835, 151719, 252865, 272505, 758595, 1871201, 5613603, 9356005, 28068015]

約数ペア:

[(1, 28068015), (3, 9356005), (5, 5613603), (15, 1871201), (37, 758595), (103, 272505), (111, 252865), (185, 151719), (309, 90835), (491, 57165), (515, 54501), (555, 50573), (1473, 19055), (1545, 18167), (2455, 11433), (3811, 7365)]