1540840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{5503}}^1$

素因数の和:5521

約数の個数: 32

約数和(自身を含む): 3962880

約数和(自身を除く): 2422040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 5503, 11006, 22012, 27515, 38521, 44024, 55030, 77042, 110060, 154084, 192605, 220120, 308168, 385210, 770420, 1540840]

約数ペア:

[(1, 1540840), (2, 770420), (4, 385210), (5, 308168), (7, 220120), (8, 192605), (10, 154084), (14, 110060), (20, 77042), (28, 55030), (35, 44024), (40, 38521), (56, 27515), (70, 22012), (140, 11006), (280, 5503)]