20542420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{54059}}^1$

素因数の和:54087

約数の個数: 24

約数和(自身を含む): 45410400

約数和(自身を除く): 24867980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 54059, 108118, 216236, 270295, 540590, 1027121, 1081180, 2054242, 4108484, 5135605, 10271210, 20542420]

約数ペア:

[(1, 20542420), (2, 10271210), (4, 5135605), (5, 4108484), (10, 2054242), (19, 1081180), (20, 1027121), (38, 540590), (76, 270295), (95, 216236), (190, 108118), (380, 54059)]