81738128

素因数分解:

$2^4\times {\mathrm{59}}^1\times {\mathrm{86587}}^1$

素因数の和:86654

約数の個数: 20

約数和(自身を含む): 161053680

約数和(自身を除く): 79315552

約数列:

[1, 2, 4, 8, 16, 59, 118, 236, 472, 944, 86587, 173174, 346348, 692696, 1385392, 5108633, 10217266, 20434532, 40869064, 81738128]

約数ペア:

[(1, 81738128), (2, 40869064), (4, 20434532), (8, 10217266), (16, 5108633), (59, 1385392), (118, 692696), (236, 346348), (472, 173174), (944, 86587)]