18854740

素因数分解:

$2^2\times 5^1\times {\mathrm{619}}^1\times {\mathrm{1523}}^1$

素因数の和:2151

約数の個数: 24

約数和(自身を含む): 39684960

約数和(自身を除く): 20830220

約数列:

[1, 2, 4, 5, 10, 20, 619, 1238, 1523, 2476, 3046, 3095, 6092, 6190, 7615, 12380, 15230, 30460, 942737, 1885474, 3770948, 4713685, 9427370, 18854740]

約数ペア:

[(1, 18854740), (2, 9427370), (4, 4713685), (5, 3770948), (10, 1885474), (20, 942737), (619, 30460), (1238, 15230), (1523, 12380), (2476, 7615), (3046, 6190), (3095, 6092)]