18643880

素因数分解:

$2^3\times 5^1\times {\mathrm{167}}^1\times {\mathrm{2791}}^1$

素因数の和:2969

約数の個数: 32

約数和(自身を含む): 42215040

約数和(自身を除く): 23571160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 167, 334, 668, 835, 1336, 1670, 2791, 3340, 5582, 6680, 11164, 13955, 22328, 27910, 55820, 111640, 466097, 932194, 1864388, 2330485, 3728776, 4660970, 9321940, 18643880]

約数ペア:

[(1, 18643880), (2, 9321940), (4, 4660970), (5, 3728776), (8, 2330485), (10, 1864388), (20, 932194), (40, 466097), (167, 111640), (334, 55820), (668, 27910), (835, 22328), (1336, 13955), (1670, 11164), (2791, 6680), (3340, 5582)]