18639780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{310663}}^1$

素因数の和:310675

約数の個数: 24

約数和(自身を含む): 52191552

約数和(自身を除く): 33551772

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 310663, 621326, 931989, 1242652, 1553315, 1863978, 3106630, 3727956, 4659945, 6213260, 9319890, 18639780]

約数ペア:

[(1, 18639780), (2, 9319890), (3, 6213260), (4, 4659945), (5, 3727956), (6, 3106630), (10, 1863978), (12, 1553315), (15, 1242652), (20, 931989), (30, 621326), (60, 310663)]