309459760

素因数分解:

$2^4\times 5^1\times {\mathrm{3868247}}^1$

素因数の和:3868260

約数の個数: 20

約数和(自身を含む): 719494128

約数和(自身を除く): 410034368

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3868247, 7736494, 15472988, 19341235, 30945976, 38682470, 61891952, 77364940, 154729880, 309459760]

約数ペア:

[(1, 309459760), (2, 154729880), (4, 77364940), (5, 61891952), (8, 38682470), (10, 30945976), (16, 19341235), (20, 15472988), (40, 7736494), (80, 3868247)]