155779760

素因数分解:

$2^4\times 5^1\times {\mathrm{1947247}}^1$

素因数の和:1947260

約数の個数: 20

約数和(自身を含む): 362188128

約数和(自身を除く): 206408368

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1947247, 3894494, 7788988, 9736235, 15577976, 19472470, 31155952, 38944940, 77889880, 155779760]

約数ペア:

[(1, 155779760), (2, 77889880), (4, 38944940), (5, 31155952), (8, 19472470), (10, 15577976), (16, 9736235), (20, 7788988), (40, 3894494), (80, 1947247)]