17995720

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{10973}}^1$

素因数の和:11025

約数の個数: 32

約数和(自身を含む): 41481720

約数和(自身を除く): 23486000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 10973, 21946, 43892, 54865, 87784, 109730, 219460, 438920, 449893, 899786, 1799572, 2249465, 3599144, 4498930, 8997860, 17995720]

約数ペア:

[(1, 17995720), (2, 8997860), (4, 4498930), (5, 3599144), (8, 2249465), (10, 1799572), (20, 899786), (40, 449893), (41, 438920), (82, 219460), (164, 109730), (205, 87784), (328, 54865), (410, 43892), (820, 21946), (1640, 10973)]