78380080

素因数分解:

$2^4\times 5^1\times {\mathrm{541}}^1\times {\mathrm{1811}}^1$

素因数の和:2365

約数の個数: 40

約数和(自身を含む): 182671344

約数和(自身を除く): 104291264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 541, 1082, 1811, 2164, 2705, 3622, 4328, 5410, 7244, 8656, 9055, 10820, 14488, 18110, 21640, 28976, 36220, 43280, 72440, 144880, 979751, 1959502, 3919004, 4898755, 7838008, 9797510, 15676016, 19595020, 39190040, 78380080]

約数ペア:

[(1, 78380080), (2, 39190040), (4, 19595020), (5, 15676016), (8, 9797510), (10, 7838008), (16, 4898755), (20, 3919004), (40, 1959502), (80, 979751), (541, 144880), (1082, 72440), (1811, 43280), (2164, 36220), (2705, 28976), (3622, 21640), (4328, 18110), (5410, 14488), (7244, 10820), (8656, 9055)]