20888300

素因数分解:

$2^2\times 5^2\times {\mathrm{89}}^1\times {\mathrm{2347}}^1$

素因数の和:2450

約数の個数: 36

約数和(自身を含む): 45856440

約数和(自身を除く): 24968140

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 89, 100, 178, 356, 445, 890, 1780, 2225, 2347, 4450, 4694, 8900, 9388, 11735, 23470, 46940, 58675, 117350, 208883, 234700, 417766, 835532, 1044415, 2088830, 4177660, 5222075, 10444150, 20888300]

約数ペア:

[(1, 20888300), (2, 10444150), (4, 5222075), (5, 4177660), (10, 2088830), (20, 1044415), (25, 835532), (50, 417766), (89, 234700), (100, 208883), (178, 117350), (356, 58675), (445, 46940), (890, 23470), (1780, 11735), (2225, 9388), (2347, 8900), (4450, 4694)]