819290810

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{337}}^1\times {\mathrm{18701}}^1$

素因数の和:19058

約数の個数: 32

約数和(自身を含む): 1592961552

約数和(自身を除く): 773670742

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 337, 674, 1685, 3370, 4381, 8762, 18701, 21905, 37402, 43810, 93505, 187010, 243113, 486226, 1215565, 2431130, 6302237, 12604474, 31511185, 63022370, 81929081, 163858162, 409645405, 819290810]

約数ペア:

[(1, 819290810), (2, 409645405), (5, 163858162), (10, 81929081), (13, 63022370), (26, 31511185), (65, 12604474), (130, 6302237), (337, 2431130), (674, 1215565), (1685, 486226), (3370, 243113), (4381, 187010), (8762, 93505), (18701, 43810), (21905, 37402)]