18401320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{65719}}^1$

素因数の和:65737

約数の個数: 32

約数和(自身を含む): 47318400

約数和(自身を除く): 28917080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 65719, 131438, 262876, 328595, 460033, 525752, 657190, 920066, 1314380, 1840132, 2300165, 2628760, 3680264, 4600330, 9200660, 18401320]

約数ペア:

[(1, 18401320), (2, 9200660), (4, 4600330), (5, 3680264), (7, 2628760), (8, 2300165), (10, 1840132), (14, 1314380), (20, 920066), (28, 657190), (35, 525752), (40, 460033), (56, 328595), (70, 262876), (140, 131438), (280, 65719)]