80943580

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{39293}}^1$

素因数の和:39405

約数の個数: 24

約数和(自身を含む): 171636192

約数和(自身を除く): 90692612

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 39293, 78586, 157172, 196465, 392930, 785860, 4047179, 8094358, 16188716, 20235895, 40471790, 80943580]

約数ペア:

[(1, 80943580), (2, 40471790), (4, 20235895), (5, 16188716), (10, 8094358), (20, 4047179), (103, 785860), (206, 392930), (412, 196465), (515, 157172), (1030, 78586), (2060, 39293)]