238545440

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{212987}}^1$

素因数の和:213009

約数の個数: 48

約数和(自身を含む): 644075712

約数和(自身を除く): 405530272

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 212987, 425974, 851948, 1064935, 1490909, 1703896, 2129870, 2981818, 3407792, 4259740, 5963636, 6815584, 7454545, 8519480, 11927272, 14909090, 17038960, 23854544, 29818180, 34077920, 47709088, 59636360, 119272720, 238545440]

約数ペア:

[(1, 238545440), (2, 119272720), (4, 59636360), (5, 47709088), (7, 34077920), (8, 29818180), (10, 23854544), (14, 17038960), (16, 14909090), (20, 11927272), (28, 8519480), (32, 7454545), (35, 6815584), (40, 5963636), (56, 4259740), (70, 3407792), (80, 2981818), (112, 2129870), (140, 1703896), (160, 1490909), (224, 1064935), (280, 851948), (560, 425974), (1120, 212987)]