21697680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{90407}}^1$

素因数の和:90423

約数の個数: 40

約数和(自身を含む): 67263552

約数和(自身を除く): 45565872

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 90407, 180814, 271221, 361628, 452035, 542442, 723256, 904070, 1084884, 1356105, 1446512, 1808140, 2169768, 2712210, 3616280, 4339536, 5424420, 7232560, 10848840, 21697680]

約数ペア:

[(1, 21697680), (2, 10848840), (3, 7232560), (4, 5424420), (5, 4339536), (6, 3616280), (8, 2712210), (10, 2169768), (12, 1808140), (15, 1446512), (16, 1356105), (20, 1084884), (24, 904070), (30, 723256), (40, 542442), (48, 452035), (60, 361628), (80, 271221), (120, 180814), (240, 90407)]