155647840

素因数分解:

$2^5\times 5^1\times {\mathrm{972799}}^1$

素因数の和:972814

約数の個数: 24

約数和(自身を含む): 367718400

約数和(自身を除く): 212070560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 972799, 1945598, 3891196, 4863995, 7782392, 9727990, 15564784, 19455980, 31129568, 38911960, 77823920, 155647840]

約数ペア:

[(1, 155647840), (2, 77823920), (4, 38911960), (5, 31129568), (8, 19455980), (10, 15564784), (16, 9727990), (20, 7782392), (32, 4863995), (40, 3891196), (80, 1945598), (160, 972799)]