28671111760

素因数分解:

$2^4\times 5^1\times {\mathrm{31657}}^1\times {\mathrm{11321}}^1$

素因数の和:42991

約数の個数: 40

約数和(自身を含む): 66668328936

約数和(自身を除く): 37997217176

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 11321, 22642, 31657, 45284, 56605, 63314, 90568, 113210, 126628, 158285, 181136, 226420, 253256, 316570, 452840, 506512, 633140, 905680, 1266280, 2532560, 358388897, 716777794, 1433555588, 1791944485, 2867111176, 3583888970, 5734222352, 7167777940, 14335555880, 28671111760]

約数ペア:

[(1, 28671111760), (2, 14335555880), (4, 7167777940), (5, 5734222352), (8, 3583888970), (10, 2867111176), (16, 1791944485), (20, 1433555588), (40, 716777794), (80, 358388897), (11321, 2532560), (22642, 1266280), (31657, 905680), (45284, 633140), (56605, 506512), (63314, 452840), (90568, 316570), (113210, 253256), (126628, 226420), (158285, 181136)]