20354640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{84811}}^1$

素因数の和:84827

約数の個数: 40

約数和(自身を含む): 63100128

約数和(自身を除く): 42745488

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 84811, 169622, 254433, 339244, 424055, 508866, 678488, 848110, 1017732, 1272165, 1356976, 1696220, 2035464, 2544330, 3392440, 4070928, 5088660, 6784880, 10177320, 20354640]

約数ペア:

[(1, 20354640), (2, 10177320), (3, 6784880), (4, 5088660), (5, 4070928), (6, 3392440), (8, 2544330), (10, 2035464), (12, 1696220), (15, 1356976), (16, 1272165), (20, 1017732), (24, 848110), (30, 678488), (40, 508866), (48, 424055), (60, 339244), (80, 254433), (120, 169622), (240, 84811)]