18007880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{40927}}^1$

素因数の和:40949

約数の個数: 32

約数和(自身を含む): 44202240

約数和(自身を除く): 26194360

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 40927, 81854, 163708, 204635, 327416, 409270, 450197, 818540, 900394, 1637080, 1800788, 2250985, 3601576, 4501970, 9003940, 18007880]

約数ペア:

[(1, 18007880), (2, 9003940), (4, 4501970), (5, 3601576), (8, 2250985), (10, 1800788), (11, 1637080), (20, 900394), (22, 818540), (40, 450197), (44, 409270), (55, 327416), (88, 204635), (110, 163708), (220, 81854), (440, 40927)]