21254880

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{44281}}^1$

素因数の和:44299

約数の個数: 48

約数和(自身を含む): 66954384

約数和(自身を除く): 45699504

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480, 44281, 88562, 132843, 177124, 221405, 265686, 354248, 442810, 531372, 664215, 708496, 885620, 1062744, 1328430, 1416992, 1771240, 2125488, 2656860, 3542480, 4250976, 5313720, 7084960, 10627440, 21254880]

約数ペア:

[(1, 21254880), (2, 10627440), (3, 7084960), (4, 5313720), (5, 4250976), (6, 3542480), (8, 2656860), (10, 2125488), (12, 1771240), (15, 1416992), (16, 1328430), (20, 1062744), (24, 885620), (30, 708496), (32, 664215), (40, 531372), (48, 442810), (60, 354248), (80, 265686), (96, 221405), (120, 177124), (160, 132843), (240, 88562), (480, 44281)]