20641680

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{28669}}^1$

素因数の和:28688

約数の個数: 60

約数和(自身を含む): 69324060

約数和(自身を除く): 48682380

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 28669, 57338, 86007, 114676, 143345, 172014, 229352, 258021, 286690, 344028, 430035, 458704, 516042, 573380, 688056, 860070, 1032084, 1146760, 1290105, 1376112, 1720140, 2064168, 2293520, 2580210, 3440280, 4128336, 5160420, 6880560, 10320840, 20641680]

約数ペア:

[(1, 20641680), (2, 10320840), (3, 6880560), (4, 5160420), (5, 4128336), (6, 3440280), (8, 2580210), (9, 2293520), (10, 2064168), (12, 1720140), (15, 1376112), (16, 1290105), (18, 1146760), (20, 1032084), (24, 860070), (30, 688056), (36, 573380), (40, 516042), (45, 458704), (48, 430035), (60, 344028), (72, 286690), (80, 258021), (90, 229352), (120, 172014), (144, 143345), (180, 114676), (240, 86007), (360, 57338), (720, 28669)]