20351880

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{56533}}^1$

素因数の和:56550

約数の個数: 48

約数和(自身を含む): 66144780

約数和(自身を除く): 45792900

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 56533, 113066, 169599, 226132, 282665, 339198, 452264, 508797, 565330, 678396, 847995, 1017594, 1130660, 1356792, 1695990, 2035188, 2261320, 2543985, 3391980, 4070376, 5087970, 6783960, 10175940, 20351880]

約数ペア:

[(1, 20351880), (2, 10175940), (3, 6783960), (4, 5087970), (5, 4070376), (6, 3391980), (8, 2543985), (9, 2261320), (10, 2035188), (12, 1695990), (15, 1356792), (18, 1130660), (20, 1017594), (24, 847995), (30, 678396), (36, 565330), (40, 508797), (45, 452264), (60, 339198), (72, 282665), (90, 226132), (120, 169599), (180, 113066), (360, 56533)]