21517680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{89657}}^1$

素因数の和:89673

約数の個数: 40

約数和(自身を含む): 66705552

約数和(自身を除く): 45187872

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 89657, 179314, 268971, 358628, 448285, 537942, 717256, 896570, 1075884, 1344855, 1434512, 1793140, 2151768, 2689710, 3586280, 4303536, 5379420, 7172560, 10758840, 21517680]

約数ペア:

[(1, 21517680), (2, 10758840), (3, 7172560), (4, 5379420), (5, 4303536), (6, 3586280), (8, 2689710), (10, 2151768), (12, 1793140), (15, 1434512), (16, 1344855), (20, 1075884), (24, 896570), (30, 717256), (40, 537942), (48, 448285), (60, 358628), (80, 268971), (120, 179314), (240, 89657)]